Baumann's new color card system Prase is a historical color system that was formulated strictly on the color model of Wilhelm Ostwald. The first edition was published in 1912. In the color system, both the colors and their recipes are given from natural pigments, a treasure for the color developer.
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Tertiary colors are orange-red, orange-yellow, yellow-green, blue-green, blue-purple, and red-purple. Tertiary colors assume more of one color than the other.