PRIMARY AND SECONDARY COLOURS
Colours which cannot be produced by mixing other colours are called primary colours. It is not found possible to produce either red, blue or green colours by mixing two other colours. For this reason red, green and blue are called primary colours.
Fig. 31.3 Mixing of the three primary colours
A secondary colour can be produced by mixing other colours. Thus yellow colour can be produced by mixing red and green colours. Magenta colour can be produced by mixing red and blue colours. By the same token, cyan colour can be produced by mixing blue and green colours. This is shown in Fig. 31.3.
Two colours which give ...
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