When I first started at the Faculty of Art in Nottingham, England, I learnt that the first of all simple colours is white (although some would not admit that white and black are colors), the first being a source or receiver of colours and the latter totally deprived of them. Primary colours are those that cannot be made by mixing together other colours. The three primary colours of light, as opposed to pigment – from the visible light spectrum are red, blue and green. Mixing primary, secondary and if all of the light primaries are mixed together, the result is white. This is known as additive colour mixing.
The primary colours of pigment are red, yellow and blue. The more colors that are mixed together, the result is a dull colour, almost black. This is known as subtractive color mixing.
I was fascinated to learn that in additive colour the three primary colours, red, blue and green, when mixed together, produce white light.