sRGB is a standard RGB (red, green, blue) color space that HP and Microsoft created cooperatively in 1996 to use on monitors, printers, and the World Wide Web.[2] It was subsequently standardized by the International Electrotechnical Commission (IEC) as IEC 61966-2-1:1999.[1] sRGB is the current defined standard colorspace for the web, and it is usually the assumed colorspace for images that are neither tagged for a colorspace nor have an embedded color profile.

Standard RGB
sRGB colors situated at calculated position in CIE 1931 chromaticity diagram. Luminance set so that to avoid bright lines toward primaries' complementary colours.
Native name
  • Standard RGB
  • IEC 61966-2-1:1999
First publishedOctober 18, 1999; 22 years ago (1999-10-18)[1]
CommitteeTC/SC: TC 100/TA 2[1]
DomainColor space, color model

sRGB uses the same color primaries and white point as ITU-R BT.709, the standard for HDTV.[3] However sRGB does not use the BT.709 nonlinear transfer function (sometimes informally referred to as gamma). Instead the sRGB transfer function was created for computer processing convenience, as well as being compatible with the era's CRT displays. An associated viewing environment is designed to match typical home and office viewing conditions. sRGB essentially codifies the display specifications for the computer monitors in use at that time.

An amendment of the IEC 61966-2-1 standard document that defines sRGB includes the definition of a number of variants including sYCC, which is a Y′Cb′Cr′ luma-chroma-chroma color representation of sRGB colors with an extended range of values in the RGB domain (supporting negative values in the RGB domain).[4]

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This article uses material from the Wikipedia article sRGB, and is written by contributors. Text is available under a CC BY-SA 4.0 International License; additional terms may apply. Images, videos and audio are available under their respective licenses.