Stockmar Opaque Colors - Set of Twelve ColorsStockmar Opaque colors are suitable for various different painting techniques; classic opaque painting (over painting), classic watercolor painting, lazure painting or techniques based on a mixture of approaches. The Opaque Colors are based on Goethe's color circle and have unique luminosity. This is due to the fact that the concentration of the color pigments in the Opaque colors is particularly intense. As a result the colors are richer, and remain