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A comparison between a typical normalized M cone's spectral sensitivity and the CIE 1931 luminosity function for a standard observer in photopic vision. In the CIE 1931 model, Y is the luminance, Z is quasi-equal to blue (of CIE RGB), and X is a mix of the three CIE RGB curves chosen to be nonnegative (see § Definition of the CIE XYZ color space).
Wikipedia uses a standardized set of color coordinate systems in color infobox (sample shown) and also in articles such as List of colors. Color coordinate ranges are a matter of choice and there is no universal standard range for many color spaces (though some ranges may be prevalent). A box having all of the different possible coordinate ...
The Planckian locus on the MacAdam (u, v) chromaticity diagram. The normals are lines of equal correlated color temperature. The CIE 1960 color space ("CIE 1960 UCS", variously expanded Uniform Color Space, Uniform Color Scale, Uniform Chromaticity Scale, Uniform Chromaticity Space) is another name for the (u, v) chromaticity space devised by David MacAdam.
The Color Association of the United States (CAUS), known until 1955 as the Textile Color Card Association of the United States (TCCA), is an independent color trend forecasting and color consulting service to the business community, known for its textile color swatch book, the Standard Color Reference of America (formerly the Standard Color Card of America).
The Practical Color Coordinate System (PCCS) is a discrete color space indexed by hue and tone. It was developed by the Japan Color Research Institute. [1
Further, H and h are not identical, because HSL space uses as primary colors the three additive primary colors red, green and blue (H = 0, 120, 240°). Instead, the LCh system uses the four colors red, yellow, green and blue (h = 0, 90, 180, 270°). Regardless the angle h, C = 0 means the achromatic colors (non saturated), that is, the gray axis.
In the (now dreamlike) days spent working at the office, our open floorplan revealed a glaring fact: My desk mate was organized; I was not. Her monitor rested on a neat stack of color-coded books.
Color analysis (American English; colour analysis in Commonwealth English), also known as personal color analysis (PCA), seasonal color analysis, or skin-tone matching, is a term often used within the cosmetics and fashion industry to describe a method of determining the colors of clothing and cosmetics that harmonize with the appearance of a person's skin complexion, eye color, and hair color ...