The system is based on three basic colours, red, green and blue, and thus creates 12 main colours, arranging them in a pleasing
Date: American colour-theorist Arthur Pope put forward his colour-solid for practical use in 1929.
Country of origin: USA
Basic colours: Red, yellow and blue
Form: Colour-solid formed by triangles; modified double-cube
Bibliography: A. Pope, «Tone relations in painting», Cambridge 1922; A. Pope, «An introduction to the language of drawing and painting», Cambridge 1929; A. Pope, «The Painter’s Terms», Cambridge 1929.