4 Light Mixing Processes

A. Additive complementary pairs: digital "red"(orangeish red) and digital "cyan", digital "green" (yellowish green) and digital "magenta" and digital "blue" and digital "yellow". B. Comparison of opponent pairs and additive complementaries. In this CIE xyY (chromaticity) diagram, additive complementaries are connected by a straight line through the central "white point", in this case Illuminant C. Middle yellow and middle blue are essentially complementary, but middle red and middle green are not. From The Dimensions of Colour, Section 11.2 Traditional and Modern Colour Theory.

Websites

The dimensions of colour, Section 4 - Additive mixing (David Briggs)

ISLE | Chapter 6 | Additive color mixing

Handprint (Bruce MacEvoy)

Colour theory in two minutes (Stephen Westland)

Apps

RGB -colors mixer (dmyTRUEk)

Color match RGB (Arte Digital)