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It is able to store a wider range of color values than sRGB. The Wide Gamut color space is an expanded version of the Adobe RGB color space, developed in 1998. As a comparison, the Adobe Wide Gamut RGB color space encompasses 77.6% of the visible colors specified by the Lab color space, whilst the standard Adobe RGB color space covers just 50.6%.
In color reproduction and colorimetry, a gamut, or color gamut / ˈ ɡ æ m ə t /, is a convex set containing the colors that can be accurately represented, i.e. reproduced by an output device (e.g. printer or display) or measured by an input device (e.g. camera or visual system). Devices with a larger gamut can represent more colors.
Both use the same color primaries and white point, but different transfer functions, as HDTV is intended for a dark living room while sRGB is intended for a brighter office environment. [citation needed] The gamut of these spaces is limited, covering only 35.9% of the CIE 1931 gamut. [4]
Adding a specific mapping function between a color model and a reference color space establishes within the reference color space a definite "footprint", known as a gamut, and for a given color model, this defines a color space. For example, Adobe RGB and sRGB are two different absolute color spaces, both based on the RGB color model.
CIE 1931 xy chromaticity diagram showing the gamut of the wide-gamut RGB color space and location of the primaries. The D50 white point is shown in the center.. The wide-gamut RGB color space (or Adobe Wide Gamut RGB) is a color space developed by Adobe Systems, that offers a large gamut by using pure spectral primary colors. [1]
The sRGB gamut (left) and optimal color solid (or Rösch-MacAdam color solid) (theoretical gamut of surfaces) under D65 illumination (right) within the CIE xyY color space. x and y are the horizontal axes; Y is the vertical axis.
DCI-P3 covers 53.6% [4] of the CIE 1931 chromaticity diagram (see inset image), which describes the color gamut of human color vision. A smaller, practical gamut for comparison is the Pointer's gamut, which consists of diffusely reflecting surface colors. DCI-P3 covers 86.9% of Pointer's gamut, [5] while in comparison, Rec. 709/sRGB only covers ...
This so-called gamut mismatch occurs for example, when we translate from the RGB color space with a wider gamut into the CMYK color space with a narrower gamut range. In this example, the dark highly saturated purplish-blue color of a typical computer monitor's "blue" primary is impossible to print on paper with a typical CMYK printer.