IEC6196621

IEC61966-2-1 is a standard issued by the International Electrotechnical Commission (IEC) that defines the color gamut for the sRGB color space. It was published in 1999 and has been widely adopted as a reference for digital display and image reproduction.

The standard defines the sRGB color space as a three-dimensional color space that covers the entire visible spectrum, with a color gamut tailored to match the display capabilities of most CRT monitors of the time. The sRGB space is defined by its 3D color profile, which can be represented by the cube described by the gamut.

Key characteristics of the sRGB color space include its Rec. 709 luminance and chrominance transfer characteristics, as well as its electro-optical transfer function (EOTF) and Ra (color-to-gray gradient) values. It also specifies coordinate transformation between sRGB and other color spaces, such as YCbCr and XYZ.

IEC61966-2-1 has been influential in the digital display and image reproduction industries, as it has provided a widely accepted standard for color reproduction on a wide range of devices. Its adoption has accelerated the evolution of digital displays, digital content creation, and related application fields, thereby contributing to the development and deployment of such derivatives.

The standard has undergone revisions since its first publication, in 1999. The current update is edition 2 (2016), and the publication is included in IEC supplement 01 and IEC supplement 83.