Book, Des couleurs et de leurs applications aux arts industriels à l'aide des cercles chromatiques (Colors and Their Application to Industrial Arts Using Chromatic Circles), 1864
Following his groundbreaking 1839 treatise on simultaneous contrast, Chevreul spent 25 years designing one of the first color systems to include brightness and chroma, or saturation. This plate shows 72 hues at maximum chroma; it is followed by nine color wheels shading progressively toward black. The book also includes 20-step scales showing shades and tints, the progression toward white.
It is credited
Purchase from the Margery Masinter Endowment, Smithsonian Libraries, ND1280 .C523 1864.
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Its dimensions are
H x W (open): 39.5 × 57 cm (15 9/16 × 22 7/16 in.)