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sRGB

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compatible with other software including browsers. Version 2 of the ICC profile specification does not officially support piecewise parametric curve encoding ("para"), though version 2 does support simple power-law functions. Nevertheless, lookup tables are more commonly used as they are computationally more efficient. Even when parametric curves are used, software will often reduce to a run-time lookup table for efficient processing.
2179: 1898: 429: 1604: 2617: 1957: 1703: 2331: 2834:{\displaystyle {\begin{bmatrix}R_{\text{linear}}\\G_{\text{linear}}\\B_{\text{linear}}\end{bmatrix}}={\begin{bmatrix}+3.2406255&-1.5372080&-0.4986286\\-0.9689307&+1.8757561&+0.0415175\\+0.0557101&-0.2040211&+1.0569959\end{bmatrix}}{\begin{bmatrix}X_{D65}\\Y_{D65}\\Z_{D65}\end{bmatrix}}} 1395: 2475:
may be used to convert sRGB to other color spaces. ICC profiles for sRGB are widely distributed, and the ICC distributes several variants of sRGB profiles, including variants for ICCmax, version 4, and version 2. Version 4 is generally recommended, but version 2 is still commonly used and is the most
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The first step in the calculation of sRGB from CIE XYZ is a linear transformation, which may be carried out by a matrix multiplication. (The numerical values below match those in the official sRGB specification, which corrected small rounding errors in the original publication by sRGB's creators, and
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values (sometimes called "non-linear values") are usually clipped to the 0 to 1 range. This clipping can be done before or after the gamma calculation, or done as part of converting to 8 bits. If values in the range 0 to 255 are required, e.g. for video display or 8-bit graphics, the usual technique
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of 2.2, which the sRGB working group determined was representative of the CRTs used with Windows operating systems at the time. The ability to directly display sRGB images on a CRT without any lookup greatly helped sRGB's adoption. Gamma also usefully encodes more data near the black, which reduces
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Plot of the sRGB intensities (red), and this function's slope in log-log space (blue), which is the instantaneous gamma. Below a compressed value of 0.04045 or a linear intensity of 0.00313, the curve is linear so the gamma is 1. Behind the red curve is a dashed black curve showing an exact gamma =
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of the sRGB color space (the triangle). The outer curved boundary is the spectral (or monochromatic) locus, with wavelengths shown in nanometers (labeled in blue). This image is drawn using sRGB, so colors outside the triangle cannot be accurately colored and have been interpolated. The
2174:{\displaystyle {\begin{bmatrix}R_{\text{linear}}\\G_{\text{linear}}\\B_{\text{linear}}\end{bmatrix}}={\begin{bmatrix}+3.2406&-1.5372&-0.4986\\-0.9689&+1.8758&+0.0415\\+0.0557&-0.2040&+1.0570\end{bmatrix}}{\begin{bmatrix}X_{D65}\\Y_{D65}\\Z_{D65}\end{bmatrix}}} 523:
In practice, there is still debate and confusion around whether sRGB data should be displayed with pure 2.2 gamma as defined in the standard, or with the inverse of the OETF. Some display manufacturers and calibrators use the former, while some use the latter. When a power law
1893:{\displaystyle {\begin{bmatrix}X_{D65}\\Y_{D65}\\Z_{D65}\end{bmatrix}}={\begin{bmatrix}0.4124&0.3576&0.1805\\0.2126&0.7152&0.0722\\0.0193&0.1192&0.9505\end{bmatrix}}{\begin{bmatrix}R_{\text{linear}}\\G_{\text{linear}}\\B_{\text{linear}}\end{bmatrix}}} 1022: 2483:, an sRGB image is often regarded as satisfactory for home printing. sRGB is sometimes avoided by high-end print publishing professionals because its color gamut is not big enough, especially in the blue-green colors, to include all the colors that can be reproduced in 2194: 862: 1599:{\displaystyle C_{\mathrm {linear} }={\begin{cases}{\dfrac {C_{\mathrm {srgb} }}{12.92}},&C_{\mathrm {srgb} }\leq 0.04045\\\left({\dfrac {C_{\mathrm {srgb} }+0.055}{1.055}}\right)^{\!2.4},&C_{\mathrm {srgb} }>0.04045\end{cases}}} 1059:, resulting in a small discontinuity in the curve. Some authors adopted these incorrect values, in part because the draft paper was freely available and the official IEC standard is behind a paywall. For the standard, the rounded value of 2466:
If the color space of an image is unknown and it is an 8 bit image format, sRGB is usually the assumed default, in part because color spaces with a larger gamut need a higher bit depth to maintain a low color error rate (∆E). An
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are in the range 0 to 1. When represented digitally as 8-bit numbers, these color component values are in the range of 0 to 255, and should be divided (in a floating point representation) by 255 to convert to the range of 0 to 1.
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values (sometimes called "linear values" or "linear-light values") are multiplied by a matrix to obtain CIE XYZ (the matrix has infinite precision, any change in its values or adding non-zeroes is not allowed):
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The amendment also recommends a higher-precision XYZ to sRGB matrix using seven decimal points, to more accurately invert the sRGB to XYZ matrix (which remains at the precision shown above):
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sRGB essentially codifies the display specifications for the computer monitors in use at that time, which greatly aided its acceptance. sRGB uses the same color primaries and white point as
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for both would have made the white point of most photographic paper appear excessively blue. The other parameters, such as the luminance level, are representative of a typical CRT monitor.
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The sRGB specification assumes a dimly lit encoding (creation) environment with an ambient correlated color temperature (CCT) of 5003 K. This differs from the CCT of the illuminant (
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is used to display data that was intended to be displayed on displays that use the piecewise function, the result is that the shadow details will be "crushed" towards hard black.
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As this conversion can result in sRGB values outside the range 0–1, the amendment describes how to apply the gamma correction to negative values, by applying
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with sRGB gamma encoded color components (first introduced with EXT_texture_sRGB extension, added to the core in OpenGL 2.1) and rendering into sRGB gamma encoded
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defined by these primaries, which are set such that the range of colors inside the triangle is well within the range of colors visible to a human with normal
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are typically uncalibrated, meaning that even though the image is being labeled as sRGB, one can not conclude that the image is color-accurate sRGB.
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at the time were generally designed to emulate CRT characteristics, the values also reflected prevailing practice for other display devices as well.
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recommends using the encoding viewing environment (i.e., dim, diffuse lighting) rather than the less-stringent typical viewing environment.
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On an sRGB display, each solid bar should look as bright as the surrounding striped dither. (Note: must be viewed at original, 100% size)
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the final result; gamma correction must still be applied. The following formula transforms the linear values into sRGB:
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of 2.2, with a linear portion near zero to avoid an infinite slope which emphasizes signal (camera) noise. Near zero, a
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for the web, and it is usually the assumed colorspace for images that are neither tagged for a colorspace nor have an
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Due to the standardization of sRGB on the Internet, on computers, and on printers, many low- to medium-end consumer
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The function is still very slightly non-continuous due to the prescribed value of "0.0031308" for toLinear(
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This is actually the matrix for BT.709 primaries, not just for sRGB, the second row corresponds to the
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using the same number of bits for a range of approximately -0.75–1.25 for Y; -1–1 for C.
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Michael Stokes; Matthew Anderson; Srinivasan Chandrasekar; Ricardo Motta (November 5, 1996).
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printing. Images intended for professional printing via a fully color-managed workflow (e.g.
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To avoid a kink where the two segments meet, the derivatives must be equal at this point:
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from Image Engineering GmbH & Co. KG, with a graph comparing two transfer functions
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Acquisition and Reproduction of Color Images: Colorimetric and Multispectral Approaches
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is the official specification of sRGB. It provides viewing environment, encoding, and
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tools that are usually included with software that works in these other color spaces.
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of sRGB gamma textures has direct hardware support in texturing units of most modern
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How to interpret the sRGB color space (specified in IEC 61966-2-1) for ICC profiles
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BBC RD 1991/6 Methods of Measuring and Calculating Display Transfer Characteristics
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Amendment 1 to IEC 61966-2-1:1999, approved in 2003, includes the definition of a
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IEC 61966 Colour Measurement and Management in Multimedia Systems and Equipment
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Test that shows whether your display is pure 2.2 gamma or sRGB (~2.2 gamma)
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were chosen so the curve closely resembled the gamma-2.2 curve. This gives
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The reference display characterisation is based on the characterisation in
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power law curve intercepts a straight-line section that leads to zero.
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to make the curve continuous, resulting in a slope discontinuity from
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is the sRGB↔linear functions described above). This is also used by
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created cooperatively in 1996 to use on monitors, printers, and the
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122. The reference display is characterised by a nominal power-law
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We now have two equations. If we take the two unknowns to be
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by Elle Stone, which analyzes the inconsistency among sRGB
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The fourth working draft (4WD) for 2CD of IEC 61966-2-1 is
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As the sRGB gamut meets or exceeds the gamut of a low-end
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The two dominant programming interfaces for 3D graphics,
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of chromaticities that can be represented in sRGB is the
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For the vision capacities of organisms or machines, see
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Colour Engineering: Achieving Device Independent Colour
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Draft publications by sRGB's creators further rounded
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Computing the inverse opto-eletronic transfer function
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to IEC 61966-2-1:1999 describes an sYCC encoding for
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because it is based on atmospheric filtered daylight.
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For the ancillary chunk in the PNG file format, see
2436:Comparison of some RGB and CMYK colour gamuts on a 1951:for CIE XYZ.) This matrix depends on the bitdepth. 2944: 2833: 2491:output) sometimes use another color space such as 2408: 2388: 2368: 2348: 2325: 2173: 1892: 1681: 1661: 1641: 1621: 1598: 1380: 1342: 1304: 1016: 856: 744: 656: 588: 543: 512: 477: 100: 62: 2948:Digital Video and HDTV: Algorithms and Interfaces 1551: 3951: 3066: 2424:is to multiply by 255 and round to an integer. 43:sRGB colors situated at calculated position in 3371:Conversion matrices for RGB vs. XYZ conversion 3040:Phil Green & Lindsay W. MacDonald (2002). 3416: 1907:(BT.709-1 had a typo in these coefficients). 32:IEC 61966-2-1 Default RGB Colour Space - sRGB 1111:is shown with color temperatures labeled in 3386:Will the Real sRGB Profile Please Stand Up? 2896:. International Electrotechnical Commission 176: 3423: 3409: 3190: 3188: 3014: 2921: 2919: 2917: 2915: 2913: 2911: 253:. It was subsequently standardized by the 37: 3283:International Electrotechnical Commission 255:International Electrotechnical Commission 3017:"Colour Online: sRGB... We Need To Talk" 2884: 2882: 2880: 2878: 2876: 2874: 2431: 1086: 596:, and a gamma curve that passes through 436: 427: 3273: 3271: 3269: 3185: 3165:"How to interpret the sRGB color space" 2908: 1910: 1269: 3952: 3112: 1943:, when using specified white points). 1082: 3404: 3015:Siragusano, Daniele (July 17, 2020). 2871: 182: 3266: 1052:sometimes describe sRGB conversion. 589:{\displaystyle y={\frac {x}{\Phi }}} 559:A straight line that passes through 3340:, but is not the complete standard. 3093: 2971: 1381:{\displaystyle B_{\mathrm {srgb} }} 1343:{\displaystyle G_{\mathrm {srgb} }} 1305:{\displaystyle R_{\mathrm {srgb} }} 1176:Encoding ambient illuminance level 13: 3116:Color Management for Photographers 3096:"A close look at the sRGB formula" 1919:values must be scaled so that the 1577: 1574: 1571: 1568: 1527: 1524: 1521: 1518: 1487: 1484: 1481: 1478: 1455: 1452: 1449: 1446: 1420: 1417: 1414: 1411: 1408: 1405: 1372: 1369: 1366: 1363: 1334: 1331: 1328: 1325: 1296: 1293: 1290: 1287: 1214:Typical ambient illuminance level 1115:. D65 is not an ideal 6504-kelvin 1003: 999: 981: 960: 946: 938: 912: 897: 817: 778: 770: 737: 693: 649: 581: 291: 239:RGB (red, green, blue) color space 14: 3981: 3350: 2934:from the original on Jul 3, 2023. 1264: 666:If these are joined at the point 463:opto-electronic transfer function 3934: 3933: 1107:is shown in the center, and the 3430: 3395:Color spaces - REC.709 vs. sRGB 3244: 3222: 3200: 3157: 3133: 3106: 2852: 513:{\displaystyle \gamma ^{1/2.4}} 3357:International Color Consortium 3087: 3060: 3033: 3008: 2983: 2965: 2938: 2286: 2260: 1949:standard colorimetric observer 1008: 995: 992: 973: 956: 943: 934: 921: 408:The primaries come from HDTV ( 1: 3330:, Characterization Data from 2845: 2557:where 0–1 is mapped to 1187:Encoding ambient white point 544:{\displaystyle \gamma ^{2.2}} 3293: 3119:. Focal Press. p. 121. 3073:. Universal-Publishers.com. 2545:color representation called 2184:These linear RGB values are 1222:Typical ambient white point 461:The standard also defines a 385:of the red, green, and blue 284:) compatible with the era's 7: 3338:available online (archived) 2945:Charles A. Poynton (2003). 1168:Image surround reflectance 1045:. These values, rounded to 1043:≈ 0.0392857, Φ ≈ 12.9232102 424:Transfer function ("gamma") 21:PNG § Ancillary chunks 10: 3986: 3846:Colour Index International 3316:color spaces, an extended- 1905:BT.709-2 luma coefficients 1274:The sRGB component values 1075:below the intersection to 875:then we can solve to give 18: 3970:Film and video technology 3930: 3826: 3730: 3620: 3542: 3489: 3456: 3438: 3373:by Bruce Justin Lindbloom 3067:Jon Y. Hardeberg (2001). 2979:(Report). BBC. p. 1. 1257:For optimal results, the 212: 198: 190: 171: 159: 141: 133: 125: 117: 36: 31: 2427: 296: 16:Standard RGB color space 3344:Web archive of sRGB.com 3113:Rodney, Andrew (2005). 3046:. John Wiley and Sons. 2536: 1206:Encoding viewing flare 1050:= 0.03928, Φ = 12.92321 478:{\displaystyle \gamma } 101:{\displaystyle R+G+B=1} 3230:"EXT_framebuffer_sRGB" 2835: 2444: 2410: 2390: 2370: 2350: 2327: 2175: 1894: 1683: 1663: 1643: 1623: 1600: 1382: 1344: 1306: 1237:Typical viewing flare 1120: 1018: 858: 746: 658: 590: 545: 514: 479: 442: 434: 263:embedded color profile 147:; 24 years ago 102: 64: 2836: 2435: 2411: 2391: 2371: 2351: 2328: 2176: 1895: 1684: 1664: 1644: 1624: 1601: 1383: 1345: 1307: 1090: 1019: 859: 747: 659: 591: 546: 515: 480: 440: 431: 145:October 18, 1999 103: 65: 3863:Federal Standard 595 3443:List of color spaces 3320:RGB encoding, and a 3254:. NVIDIA Corporation 2890:"IEC 61966-2-1:1999" 2618: 2442:chromaticity diagram 2400: 2380: 2360: 2340: 2195: 1958: 1911:From CIE XYZ to sRGB 1704: 1673: 1653: 1633: 1613: 1396: 1354: 1316: 1278: 1270:From sRGB to CIE XYZ 1093:chromaticity diagram 882: 762: 685: 604: 567: 528: 489: 469: 401:vision. As with any 74: 54: 48:chromaticity diagram 3232:. 17 September 2010 2951:. Morgan Kaufmann. 2285: 1171:20% (~medium gray) 1083:Viewing environment 418:flat-panel displays 28: 3960:1996 introductions 3300:IEC 61966-2-1:1999 3208:"EXT_texture_sRGB" 2831: 2825: 2762: 2669: 2445: 2406: 2386: 2366: 2346: 2323: 2318: 2263: 2171: 2165: 2102: 2009: 1927:("white") is 1.0 ( 1890: 1884: 1830: 1764: 1679: 1659: 1639: 1619: 1596: 1591: 1544: 1465: 1378: 1340: 1302: 1121: 1067:was recomputed as 1014: 854: 742: 654: 586: 541: 510: 475: 454:visible noise and 443: 435: 98: 60: 26: 3947: 3946: 3310:Amendment A1:2003 3210:. 24 January 2007 3126:978-0-240-80649-5 2664: 2650: 2636: 2600:is negative (and 2409:{\displaystyle B} 2389:{\displaystyle G} 2369:{\displaystyle R} 2349:{\displaystyle C} 2307: 2270: 2244: 2229: 2205: 2004: 1990: 1976: 1879: 1865: 1851: 1682:{\displaystyle B} 1662:{\displaystyle G} 1642:{\displaystyle R} 1622:{\displaystyle C} 1543: 1464: 1244: 1243: 1012: 907: 848: 810: 773: 730: 696: 642: 584: 381:sRGB defines the 379: 378: 278:transfer function 232: 231: 63:{\displaystyle Y} 3977: 3937: 3936: 3923: 3552:RGB color spaces 3425: 3418: 3411: 3402: 3401: 3287: 3286: 3275: 3264: 3263: 3261: 3259: 3248: 3242: 3241: 3239: 3237: 3226: 3220: 3219: 3217: 3215: 3204: 3198: 3192: 3183: 3182: 3180: 3178: 3169: 3161: 3155: 3154: 3152: 3151: 3137: 3131: 3130: 3110: 3104: 3103: 3094:Summers, Jason. 3091: 3085: 3084: 3064: 3058: 3057: 3037: 3031: 3030: 3028: 3027: 3012: 3006: 3005: 3003: 3002: 2987: 2981: 2980: 2978: 2969: 2963: 2962: 2942: 2936: 2935: 2923: 2906: 2905: 2903: 2901: 2886: 2863: 2856: 2840: 2838: 2837: 2832: 2830: 2829: 2822: 2821: 2805: 2804: 2788: 2787: 2767: 2766: 2674: 2673: 2666: 2665: 2662: 2652: 2651: 2648: 2638: 2637: 2634: 2603: 2599: 2595: 2576: 2575: 2571: 2566: 2565: 2561: 2513:OpenGL supports 2497:color management 2493:Adobe RGB (1998) 2455:use sRGB as the 2421:gamma-compressed 2415: 2413: 2412: 2407: 2395: 2393: 2392: 2387: 2375: 2373: 2372: 2367: 2355: 2353: 2352: 2347: 2332: 2330: 2329: 2324: 2322: 2321: 2309: 2308: 2305: 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2966: 2959: 2943: 2939: 2924: 2909: 2899: 2897: 2888: 2887: 2872: 2867: 2866: 2857: 2853: 2848: 2824: 2823: 2814: 2810: 2807: 2806: 2797: 2793: 2790: 2789: 2780: 2776: 2769: 2768: 2761: 2760: 2752: 2744: 2735: 2734: 2726: 2718: 2709: 2708: 2700: 2692: 2679: 2678: 2668: 2667: 2661: 2657: 2654: 2653: 2647: 2643: 2640: 2639: 2633: 2629: 2622: 2621: 2619: 2616: 2615: 2601: 2597: 2585: 2573: 2569: 2568: 2563: 2559: 2558: 2539: 2449:digital cameras 2430: 2401: 2398: 2397: 2381: 2378: 2377: 2361: 2358: 2357: 2341: 2338: 2337: 2317: 2316: 2304: 2300: 2298: 2276: 2272: 2267: 2254: 2253: 2241: 2237: 2235: 2226: 2222: 2212: 2211: 2202: 2198: 2196: 2193: 2192: 2164: 2163: 2154: 2150: 2147: 2146: 2137: 2133: 2130: 2129: 2120: 2116: 2109: 2108: 2101: 2100: 2092: 2084: 2075: 2074: 2066: 2058: 2049: 2048: 2040: 2032: 2019: 2018: 2008: 2007: 2001: 1997: 1994: 1993: 1987: 1983: 1980: 1979: 1973: 1969: 1962: 1961: 1959: 1956: 1955: 1913: 1883: 1882: 1876: 1872: 1869: 1868: 1862: 1858: 1855: 1854: 1848: 1844: 1837: 1836: 1829: 1828: 1823: 1818: 1812: 1811: 1806: 1801: 1795: 1794: 1789: 1784: 1774: 1773: 1763: 1762: 1753: 1749: 1746: 1745: 1736: 1732: 1729: 1728: 1719: 1715: 1708: 1707: 1705: 1702: 1701: 1674: 1671: 1670: 1654: 1651: 1650: 1634: 1631: 1630: 1614: 1611: 1610: 1590: 1589: 1567: 1566: 1562: 1560: 1550: 1517: 1516: 1512: 1511: 1508: 1504: 1503: 1500: 1499: 1477: 1476: 1472: 1470: 1445: 1444: 1440: 1437: 1430: 1429: 1404: 1403: 1399: 1397: 1394: 1393: 1362: 1361: 1357: 1355: 1352: 1351: 1324: 1323: 1319: 1317: 1314: 1313: 1286: 1285: 1281: 1279: 1276: 1275: 1272: 1267: 1232:= 0.3585 (D50) 1109:Planckian locus 1085: 1076: 1072: 1068: 1064: 1060: 1056: 1046: 1039: 1035: 1028: 1002: 998: 980: 976: 972: 959: 955: 937: 933: 920: 918: 896: 891: 883: 880: 879: 872: 868: 837: 832: 828: 816: 799: 788: 786: 782: 781: 765: 763: 760: 759: 736: 719: 708: 706: 702: 701: 688: 686: 683: 682: 667: 648: 631: 620: 618: 614: 613: 605: 602: 601: 597: 576: 568: 565: 564: 560: 557: 535: 531: 529: 526: 525: 500: 496: 492: 490: 487: 486: 470: 467: 466: 426: 403:RGB color space 299: 294: 292:sRGB definition 216: 151: 149: 146: 142:First published 113: 75: 72: 71: 55: 52: 51: 24: 17: 12: 11: 5: 3983: 3973: 3972: 3967: 3962: 3945: 3944: 3931: 3928: 3927: 3925: 3924: 3912: 3911: 3910: 3900: 3895: 3890: 3885: 3880: 3875: 3870: 3865: 3860: 3855: 3854: 3853: 3843: 3838: 3832: 3830: 3824: 3823: 3821: 3820: 3815: 3810: 3805: 3800: 3795: 3790: 3785: 3780: 3775: 3770: 3765: 3760: 3755: 3750: 3745: 3740: 3734: 3732: 3728: 3727: 3725: 3724: 3719: 3714: 3713: 3712: 3702: 3701: 3700: 3690: 3689: 3688: 3683: 3678: 3673: 3663: 3662: 3661: 3651: 3650: 3649: 3639: 3638: 3637: 3626: 3624: 3618: 3617: 3615: 3614: 3609: 3604: 3599: 3597:SMPTE 240M/"C" 3594: 3589: 3584: 3579: 3574: 3569: 3564: 3559: 3554: 3548: 3546: 3540: 3539: 3537: 3536: 3531: 3526: 3521: 3516: 3511: 3506: 3501: 3495: 3493: 3487: 3486: 3484: 3483: 3478: 3473: 3468: 3462: 3460: 3454: 3453: 3451: 3450: 3445: 3439: 3436: 3435: 3428: 3427: 3420: 3413: 3405: 3399: 3398: 3392: 3383: 3374: 3368: 3359: 3352: 3351:External links 3349: 3348: 3347: 3341: 3334: 3325: 3307: 3295: 3292: 3289: 3288: 3265: 3243: 3221: 3199: 3184: 3156: 3132: 3125: 3105: 3086: 3079: 3059: 3052: 3032: 3007: 2995:Colour Science 2982: 2964: 2957: 2937: 2907: 2869: 2868: 2865: 2864: 2850: 2849: 2847: 2844: 2843: 2842: 2828: 2820: 2817: 2813: 2809: 2808: 2803: 2800: 2796: 2792: 2791: 2786: 2783: 2779: 2775: 2774: 2772: 2765: 2759: 2756: 2753: 2751: 2748: 2745: 2743: 2740: 2737: 2736: 2733: 2730: 2727: 2725: 2722: 2719: 2717: 2714: 2711: 2710: 2707: 2704: 2701: 2699: 2696: 2693: 2691: 2688: 2685: 2684: 2682: 2677: 2672: 2660: 2656: 2655: 2646: 2642: 2641: 2632: 2628: 2627: 2625: 2538: 2535: 2481:inkjet printer 2429: 2426: 2405: 2385: 2365: 2345: 2334: 2333: 2320: 2315: 2312: 2303: 2299: 2297: 2294: 2291: 2288: 2283: 2279: 2275: 2266: 2262: 2259: 2256: 2255: 2252: 2249: 2240: 2236: 2234: 2225: 2221: 2218: 2217: 2215: 2210: 2201: 2187: 2182: 2181: 2168: 2160: 2157: 2153: 2149: 2148: 2143: 2140: 2136: 2132: 2131: 2126: 2123: 2119: 2115: 2114: 2112: 2105: 2099: 2096: 2093: 2091: 2088: 2085: 2083: 2080: 2077: 2076: 2073: 2070: 2067: 2065: 2062: 2059: 2057: 2054: 2051: 2050: 2047: 2044: 2041: 2039: 2036: 2033: 2031: 2028: 2025: 2024: 2022: 2017: 2012: 2000: 1996: 1995: 1986: 1982: 1981: 1972: 1968: 1967: 1965: 1947:assume the 2° 1912: 1909: 1901: 1900: 1887: 1875: 1871: 1870: 1861: 1857: 1856: 1847: 1843: 1842: 1840: 1833: 1827: 1824: 1822: 1819: 1817: 1814: 1813: 1810: 1807: 1805: 1802: 1800: 1797: 1796: 1793: 1790: 1788: 1785: 1783: 1780: 1779: 1777: 1772: 1767: 1759: 1756: 1752: 1748: 1747: 1742: 1739: 1735: 1731: 1730: 1725: 1722: 1718: 1714: 1713: 1711: 1694:gamma-expanded 1678: 1658: 1638: 1618: 1607: 1606: 1593: 1588: 1585: 1579: 1576: 1573: 1570: 1565: 1561: 1559: 1554: 1548: 1542: 1538: 1535: 1529: 1526: 1523: 1520: 1515: 1507: 1502: 1501: 1498: 1495: 1489: 1486: 1483: 1480: 1475: 1471: 1469: 1463: 1457: 1454: 1451: 1448: 1443: 1436: 1435: 1433: 1428: 1422: 1419: 1416: 1413: 1410: 1407: 1402: 1374: 1371: 1368: 1365: 1360: 1336: 1333: 1330: 1327: 1322: 1298: 1295: 1292: 1289: 1284: 1271: 1268: 1266: 1265:Transformation 1263: 1242: 1241: 1238: 1234: 1233: 1223: 1219: 1218: 1215: 1211: 1210: 1207: 1203: 1202: 1188: 1184: 1183: 1177: 1173: 1172: 1169: 1165: 1164: 1150: 1143: 1142: 1139: 1131: 1130: 1127: 1084: 1081: 1025: 1024: 1010: 1005: 1001: 997: 994: 989: 986: 983: 979: 975: 968: 965: 962: 958: 954: 951: 948: 945: 940: 936: 932: 929: 926: 923: 917: 914: 911: 905: 902: 899: 895: 890: 887: 865: 864: 852: 846: 843: 840: 836: 831: 825: 822: 819: 814: 808: 805: 802: 797: 794: 791: 785: 780: 777: 772: 769: 753: 752: 739: 734: 728: 725: 722: 717: 714: 711: 705: 700: 695: 692: 651: 646: 640: 637: 634: 629: 626: 623: 617: 612: 609: 583: 580: 575: 572: 556: 553: 538: 534: 507: 503: 499: 495: 474: 433:2.2 power law. 425: 422: 395:color triangle 383:chromaticities 377: 376: 373: 370: 367: 364: 358: 357: 354: 351: 348: 345: 339: 338: 335: 332: 329: 326: 320: 319: 316: 313: 310: 307: 298: 295: 293: 290: 251:World Wide Web 237:is a standard 230: 229: 214: 210: 209: 200: 196: 195: 192: 191:Base standards 188: 187: 173: 169: 168: 161: 157: 156: 143: 139: 138: 135: 131: 130: 127: 123: 122: 119: 115: 114: 97: 94: 91: 88: 85: 82: 79: 59: 42: 34: 33: 15: 9: 6: 4: 3: 2: 3982: 3971: 3968: 3966: 3963: 3961: 3958: 3957: 3955: 3941: 3929: 3921: 3916: 3913: 3909: 3906: 3905: 3904: 3901: 3899: 3896: 3894: 3891: 3889: 3886: 3884: 3881: 3879: 3876: 3874: 3871: 3869: 3866: 3864: 3861: 3859: 3856: 3852: 3849: 3848: 3847: 3844: 3842: 3839: 3837: 3834: 3833: 3831: 3829:and standards 3827:Color systems 3825: 3819: 3816: 3814: 3811: 3809: 3806: 3804: 3801: 3799: 3796: 3794: 3791: 3789: 3786: 3784: 3781: 3779: 3776: 3774: 3771: 3769: 3766: 3764: 3761: 3759: 3756: 3754: 3751: 3749: 3746: 3744: 3741: 3739: 3736: 3735: 3733: 3729: 3723: 3720: 3718: 3715: 3711: 3708: 3707: 3706: 3703: 3699: 3696: 3695: 3694: 3691: 3687: 3684: 3682: 3679: 3677: 3674: 3672: 3669: 3668: 3667: 3664: 3660: 3657: 3656: 3655: 3652: 3648: 3645: 3644: 3643: 3640: 3636: 3633: 3632: 3631: 3628: 3627: 3625: 3623: 3619: 3613: 3610: 3608: 3605: 3603: 3600: 3598: 3595: 3593: 3590: 3588: 3585: 3583: 3580: 3578: 3575: 3573: 3570: 3568: 3565: 3563: 3560: 3558: 3555: 3553: 3550: 3549: 3547: 3545: 3541: 3535: 3532: 3530: 3527: 3525: 3524:CIELUV (1976) 3522: 3520: 3519:CIELAB (1976) 3517: 3515: 3512: 3510: 3507: 3505: 3502: 3500: 3497: 3496: 3494: 3492: 3488: 3482: 3479: 3477: 3474: 3472: 3469: 3467: 3464: 3463: 3461: 3459: 3455: 3449: 3446: 3444: 3441: 3440: 3437: 3433: 3426: 3421: 3419: 3414: 3412: 3407: 3406: 3403: 3396: 3393: 3391: 3387: 3384: 3382: 3378: 3375: 3372: 3369: 3367: 3363: 3360: 3358: 3355: 3354: 3345: 3342: 3339: 3335: 3333: 3329: 3326: 3323: 3319: 3315: 3311: 3308: 3305: 3301: 3298: 3297: 3284: 3280: 3274: 3272: 3270: 3253: 3247: 3231: 3225: 3209: 3203: 3196: 3195:sRGB profiles 3191: 3189: 3173: 3166: 3160: 3146: 3142: 3136: 3128: 3122: 3118: 3117: 3109: 3101: 3097: 3090: 3082: 3080:1-58112-135-0 3076: 3072: 3071: 3063: 3055: 3053:0-471-48688-4 3049: 3045: 3044: 3036: 3022: 3018: 3011: 2996: 2992: 2986: 2975: 2968: 2960: 2958:1-55860-792-7 2954: 2950: 2949: 2941: 2933: 2929: 2922: 2920: 2918: 2916: 2914: 2912: 2895: 2891: 2885: 2883: 2881: 2879: 2877: 2875: 2870: 2861: 2855: 2851: 2826: 2818: 2815: 2811: 2801: 2798: 2794: 2784: 2781: 2777: 2770: 2763: 2757: 2754: 2749: 2746: 2741: 2738: 2731: 2728: 2723: 2720: 2715: 2712: 2705: 2702: 2697: 2694: 2689: 2686: 2680: 2675: 2670: 2658: 2644: 2630: 2623: 2614: 2613: 2612: 2609: 2607: 2593: 2589: 2582: 2580: 2556: 2552: 2548: 2544: 2534: 2532: 2528: 2527:interpolation 2524: 2520: 2516: 2511: 2509: 2505: 2500: 2498: 2494: 2490: 2486: 2482: 2477: 2474: 2470: 2464: 2462: 2458: 2454: 2450: 2443: 2439: 2434: 2425: 2422: 2417: 2403: 2383: 2363: 2343: 2313: 2310: 2301: 2295: 2292: 2289: 2281: 2277: 2273: 2264: 2257: 2250: 2247: 2238: 2232: 2223: 2219: 2213: 2208: 2199: 2191: 2190: 2189: 2185: 2166: 2158: 2155: 2151: 2141: 2138: 2134: 2124: 2121: 2117: 2110: 2103: 2097: 2094: 2089: 2086: 2081: 2078: 2071: 2068: 2063: 2060: 2055: 2052: 2045: 2042: 2037: 2034: 2029: 2026: 2020: 2015: 2010: 1998: 1984: 1970: 1963: 1954: 1953: 1952: 1950: 1944: 1942: 1938: 1934: 1930: 1926: 1922: 1918: 1908: 1906: 1885: 1873: 1859: 1845: 1838: 1831: 1825: 1820: 1815: 1808: 1803: 1798: 1791: 1786: 1781: 1775: 1770: 1765: 1757: 1754: 1750: 1740: 1737: 1733: 1723: 1720: 1716: 1709: 1700: 1699: 1698: 1695: 1690: 1676: 1656: 1636: 1616: 1586: 1583: 1563: 1557: 1552: 1546: 1540: 1536: 1533: 1513: 1505: 1496: 1493: 1473: 1467: 1461: 1441: 1431: 1426: 1400: 1392: 1391: 1390: 1358: 1320: 1282: 1262: 1260: 1255: 1253: 1249: 1239: 1236: 1235: 1231: 1227: 1224: 1221: 1220: 1216: 1213: 1212: 1208: 1205: 1204: 1200: 1196: 1192: 1189: 1186: 1185: 1182: 1178: 1175: 1174: 1170: 1167: 1166: 1162: 1158: 1154: 1151: 1149: 1145: 1144: 1141:80 cd/m 1140: 1137: 1133: 1132: 1128: 1125: 1124: 1118: 1114: 1110: 1106: 1103: 1098: 1094: 1089: 1080: 1063:was kept and 1053: 1049: 1042: 1031: 987: 984: 977: 966: 963: 952: 949: 930: 927: 924: 915: 909: 903: 900: 893: 888: 885: 878: 877: 876: 850: 844: 841: 838: 834: 829: 823: 820: 812: 806: 803: 800: 795: 792: 789: 783: 775: 767: 758: 757: 756: 732: 726: 723: 720: 715: 712: 709: 703: 698: 690: 681: 680: 679: 675: 671: 664: 644: 638: 635: 632: 627: 624: 621: 615: 610: 607: 578: 573: 570: 552: 536: 532: 521: 505: 501: 497: 493: 472: 464: 459: 457: 452: 448: 439: 430: 421: 419: 415: 411: 406: 404: 400: 396: 392: 388: 384: 374: 371: 368: 365: 363: 360: 359: 355: 352: 349: 346: 344: 341: 340: 336: 333: 330: 327: 325: 322: 321: 317: 314: 311: 308: 306: 303: 302: 289: 287: 283: 279: 275: 272:standard for 271: 266: 264: 260: 256: 252: 248: 244: 240: 236: 227: 215: 211: 208: 204: 201: 197: 193: 189: 186:: TC 100/TA 2 185: 179: 174: 170: 166: 162: 158: 144: 140: 136: 132: 128: 124: 120: 116: 111: 95: 92: 89: 86: 83: 80: 77: 57: 47: 40: 35: 30: 22: 3940:Color vision 3556: 3448:Color models 3390:ICC profiles 3304:colorimetric 3256:. Retrieved 3246: 3234:. Retrieved 3224: 3212:. Retrieved 3202: 3175:. Retrieved 3171: 3159: 3148:. Retrieved 3144: 3135: 3115: 3108: 3099: 3089: 3069: 3062: 3042: 3035: 3024:. Retrieved 3020: 3010: 2999:. Retrieved 2997:. 2015-12-05 2994: 2985: 2972:Roberts, A. 2967: 2947: 2940: 2898:. Retrieved 2894:IEC Webstore 2893: 2859: 2854: 2610: 2591: 2587: 2583: 2578: 2554: 2546: 2540: 2519:framebuffers 2512: 2501: 2478: 2473:lookup table 2465: 2446: 2418: 2335: 2183: 1945: 1936: 1932: 1928: 1920: 1914: 1902: 1691: 1608: 1273: 1256: 1245: 1229: 1225: 1194: 1190: 1156: 1152: 1095:showing the 1091:CIE 1931 xy 1054: 1047: 1040: 1029: 1026: 866: 754: 673: 669: 665: 558: 522: 460: 456:quantization 444: 414:ITU-R BT.601 410:ITU-R BT.709 407: 399:trichromatic 380: 361: 342: 323: 318:White point 305:Chromaticity 286:CRT displays 270:ITU-R BT.709 267: 234: 233: 224:/publication 181: 175: 160:Organization 134:Year started 118:Abbreviation 70:set so that 50:. Luminance 3965:Color space 3918: [ 3873:ICC profile 3432:Color space 2469:ICC profile 1148:white point 1146:Illuminant 1105:white point 1027:The values 458:artifacts. 207:color model 203:Color space 3954:Categories 3763:Hexachrome 3572:Wide-gamut 3514:UVW (1964) 3509:YUV (1960) 3504:RGB (1931) 3499:XYZ (1931) 3177:17 October 3150:2022-09-11 3026:2024-09-01 3001:2021-11-05 2846:References 2523:mipmapping 1935:= 1.0000, 1931:= 0.9505, 1228:= 0.3457, 1197:= 0.3585 ( 1193:= 0.3457, 1159:= 0.3290 ( 1155:= 0.3127, 1126:Parameter 1117:black body 259:colorspace 152:1999-10-18 110:mach bands 3915:JIS Z8102 3698:Rec. 2100 3686:Rec. 2100 3681:Rec. 2020 3612:Rec. 2100 3607:Rec. 2020 3381:Shadertoy 3294:Standards 3172:color.org 3021:FilmLight 2758:1.0569959 2750:0.2040211 2747:− 2742:0.0557101 2732:0.0415175 2724:1.8757561 2716:0.9689307 2713:− 2706:0.4986286 2703:− 2698:1.5372080 2695:− 2690:3.2406255 2314:0.0031308 2290:− 2251:0.0031308 2248:≤ 2087:− 2053:− 2043:− 2035:− 1494:≤ 1250:). 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Index

PNG § Ancillary chunks

CIE 1931
mach bands
IEC
Color space
color model
webstore.iec.ch/publication/6169
RGB (red, green, blue) color space
HP
Microsoft
World Wide Web
International Electrotechnical Commission
colorspace
embedded color profile
ITU-R BT.709
HDTV
transfer function
gamma
CRT displays
Chromaticity
chromaticities
primaries
gamut
color triangle
trichromatic
RGB color space
ITU-R BT.709
ITU-R BT.601
flat-panel displays

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