Tertiary color if they exist at all, though indigo and scarlet are standard for blue–violet and red–vermilion. In another sense, a tertiary color is obtained by mixing secondary-colored pigments. These three colors are russet (orange–purple), slate (purple–green), and citron (green–orange), with the corresponding three quaternary colors plum (russet–slate), sage (slate–citron), buff (citron–russet) (with olive sometimes used for either slate or citron). Beyond that are shades of grey (blue grey and brown greys), which approach but never quite reach black. The RYB color terminology outlined above and in the color samples shown below is ultimately derived from the 1835 book "Chromatography", an analysis
Complementary colors by many artists today, the primary colors were considered to be red, yellow, and blue, and the primary–secondary complementary pairs are red–green, blue-orange, and yellow–purple. In the traditional representation, a complementary color pair is made up of a primary color (yellow, blue or red) and a secondary color (green, purple or orange). For example, yellow is a primary color, and painters can make purple by mixing of red and blue; so when yellow and purple paint are mixed, all three primary colors are present. Since paints work by absorbing light, having all three primaries together results in a black or