Principles of the science of colour : concisely stated to aid and promote their useful application in the decorative arts (1876)
Benson, William, Lowry, Joseph Wilson, 1803-1879 · London : Chapman & Hall · leaf 27
een, and Purple, the Secondary colours. But that theory is entirely subverted not only by the researches above mentioned on the prismatic colours, but by all scientific experiments on the mixture of colours, which show that Red and Green, Yellow and Purple, Blue and Orange, are not complementary to… … to be represented in this diagram, may be termed the principal colours; and it may well be supposed that each of them would form as striking a contrast with its complementary, as full White does to Black, were it possible to present them to the eye with perfect purity: in practice, however, there…
Color
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.