The science of beauty, as developed in nature and applied in art

by David Ramsay Hay

From the binary union of the primary colours, the secondary colours arise—

Orange colour, from the union of yellow and red.

Green, from the union of yellow and blue.

Purple, from the union of red and blue.

From the binary union of the secondary colours, the primary hues arise—

Yellow-hue, from the union of orange and green.

Red-hue, from the union of orange and purple.

Blue-hue, from the union of purple and green.

From the binary union of the primary hues, the secondary hues arise—

Orange-hue, from the union of yellow-hue and red-hue.