TRUMATCH is based upon the original theories describing color as 3-dimensional space, which were separately presented by Munsell and Ostwald in 1929 and 1931, respectively, and refined in 1931 by the Commission Internationale de l'Eclairage (CIE).
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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.