Students' text-book of color, or, Modern chromatics : with applications to art and industry (1881)
Rood, Ogden N. (Ogden Nicholas), 1831-1902 · New York : D. Appleton · leaf 233
ell, vermilion, emerald-green, and artificialultramarine-blue were assumed as the three fundamental colours,and positions at the three angles of an equilateral triangle assignedto them. The length of each side of the triangle was 200 divisionsof the scale employed. The first step was to determine… … Fig. 101.—Compound Disk of Vermilion, Emerald-green, Ultramarine, White andBlack, arranged for the production of Grey. same axis. It was found, when the colours were mixed by rapidrotation, that 36*46 parts of vermilion, with 33*76 of emerald-greenand 29*76 of ultramarine, gave a grey similar to…
Color · Painting · Color in art
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