ABSTRACT
Photographers find it helpful to think of colour relationships as a wheel. On the 360-degree wheel the primary colours of red, green and blue are each 120 degrees apart; between them are cyan, magenta and yellow. Blend each of these colours progressively around the wheel and amateur photographers have the photographer’s colour wheel. Complementary colours are those that lie opposite each other on the colour wheel. The most important complementary pairs are those of the primary colours of white light: red, green and blue. These are paired across the colour wheel with cyan, magenta and yellow respectively. In black-and-white photography complementary colours darken the resulting grey tone seen in the finished print. Filters of a similar colour to a subject will lighten the tones produced.
