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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Warm colors project the hot hues of sunlight and promote a feeling of warmth in a room. They advance space and are used to make walls appear closer. Cool colors reflect the fresh violets and blues of moonlight.