The figures for Dichromatic vision are taken from Hans Brettel's Computerized Simulation of Color Appearance for Dichromats. Anomalous Trichromatic colors were calculated by averaging Brettel's figures with the Trichromatic values. Typical Monochromatic values are RGB averaged Trichromatic values. Atypical Monochromatic values are Typical Monochromatic values averaged against Trichromatic values with a weighting of 4 to 1.