In this case, DCI-P3 covers 86.9% of Pointer's gamut.
This defined the spectral locus, which is the outer rim of the diagram, and the maximum extent of human color vision.Ī more practical gamut is that of reflected surface colors which is described by Pointer's gamut. In that study, participants visually matched a mixture of red, green, and blue "primary" lights to specific, pure monochromatic colored lights. sRGB's green primary is more yellowish at 549.1 nm.ĭCI-P3 covers 45.5% of the CIE 1931 chromaticity diagram (see inset image), which describes the color gamut of daylight human vision ( Photopic vision) as determined experimentally in the 1920s. Adobe RGB's green primary is more blueish with a dominant wavelength of 534.7 nm. DCI-P3's green primary has a dominant wavelength of 544.2 nm. The most significant difference is the green primary which is much closer to the spectral locus than either sRGB or Adobe RGB. The red primary is a slightly deeper red than sRGB and Adobe RGB, with a dominant wavelength of 614.9 nm. 709, sRGB, and Adobe RGB, with a dominant wavelength of 464.2 nm. The blue primary color is the same as Rec. In 2005, Digital Cinema Initiatives in Hollywood, California released Digital Cinema System Specification version 1.0, which defined the colorimetry of what would become known as the DCI-P3 color space (see section 8.3.4 in the specification).