18 pages matching two-thirds colors in this book
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absorbed achromatic hue achromatic planes additive mixture additive primaries appearance arranged body colors brightness cent chromatic factor ClE system code number color blindness color circle color harmony color layer color solid color space color stimulus color temperature color tone planes color value plane color vision colored lights complementary colors cube cyan defective color vision digital sum distance energy equal color tone equal color values gray axis Hickethier's infinite number inks intensity laws of color light rays magenta maximum saturation metameric colors mixed monochromatic colors octahedron one-third color original colors Ostwald's paste paints possible primary colors printing produced reference planes reflectance curves retina rhombohedron saturation grades saturation planes sections shown in fig shows spectral composition spectral regions substance subtractive color subtractive mixture subtractive primaries tetrahedron theory of color tion triangles of equal two-thirds colors types of cone visible radiation wave wavelengths white light white paper white point yellow