Wide-gamut RGB color space

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.

[3] When working in color spaces with such a large gamut, it is recommended to work in 16-bit per channel color depth to avoid posterization effects.

This will occur more frequently in 8-bit per channel modes as the gradient steps are much larger.

[4] As with sRGB, the color component values in wide-gamut RGB are not proportional to the luminances.

Similar to Adobe RGB, a gamma of 2.2 is assumed, without the linear segment near zero that is present in sRGB.

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.