Chromaticity

Chromaticity is an objective specification of the quality of a color regardless of its luminance, that is, as determined by its hue and colorfulness (or saturation, chroma, intensity, or excitation purity).

In color science, the white point of an illuminant or of a display is a neutral reference characterized by a chromaticity; for example, the white point of an sRGB display is an x,y chromaticity of . All other chromaticities may be defined in relation to this reference using polar coordinates. The hue is the angular component, and the purity is the radial component, normalized by the maximum radius for that hue.

Read more about Chromaticity:  In Color Science

Other articles related to "chromaticity":

Color Triangle
... color space defined by three primary colors has a chromaticity gamut that is a color triangle, when the amounts of the primaries are constrained to be nonnegative ... After the development of the CIE system, color triangles were used as chromaticity diagrams, including briefly with the trilinear coordinates representing the chromaticity values ... Since the sum of the three chromaticity values has a fixed value, it suffices to depict only two of the three values, using Cartesian co-ordinates ...
Chromaticity - In Color Science
... the three dimensions of color into one luminance dimension and a pair of chromaticity dimensions ... For example, the chromaticity coordinates are a* and b* in CIELAB, u and v in CIELUV, x and y in xyY space, etc ... These pairs define chromaticity vectors in a rectangular 2-space, unlike the polar coordinates of hue angle and saturation that are used in HSV color space ...
Correlated Color Temperature - Precautions
... Although the CCT can be calculated for any chromaticity coordinate, the result is meaningful only if the light sources are nearly white ... that "The concept of correlated color temperature should not be used if the chromaticity of the test source differs more than from the Planckian radiator." Beyond a certain value of, a ...
Adams Chromatic Valence Color Space - Chromance
... In chromaticity scales, lightness is factored out, leaving two dimensions ... power distribution, but different luminance, will have identical chromaticity coordinates ... The familiar CIE (x, y) chromaticity diagram is very perceptually non-uniform small perceptual changes in chromaticity in greens, for example, translate into large distances ...
Planckian Locus
... that the color of an incandescent black body would take in a particular chromaticity space as the blackbody temperature changes ... A chromaticity is a color projected into a two-dimensional space that ignores brightness ... For example, the standard CIE XYZ color space projects directly to the corresponding chromaticity space specified by the two chromaticity coordinates known as x and y, making ...