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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Value describes the darkness or lightness of a color. A color light in value has been diluted with white. For example, pink is a tint of red that has a light value, because of the white added to it.