What Three Colours Make Up White Light?

White light is not specifically a colour, but rather a spectrum containing all the frequencies of visible light. It can be produced using three frequencies of light, or primary colours. The most common are red, green and blue, although any type of colour can be used. When combined at the appropriate intensity, these colours will produce a white effect. This process is employed on television and computer screens through different levels of intensity to produce varying degrees of colour.

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White light is made up of the colours of the rainbow. The colours of the rainbow being red, orange, yellow, green, indigo and violet. Other books also say that the colours red, yellow, green, blue, cyan and magenta make up white light.

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Mainly black, grey and purple, although in the right amounts, most colour combo's work

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