Red, green and blue (RGB) are the primary additive colours. Computer monitors and televisions use the RGB colour model to transmit coloured light. Compare to subtractive colour (CMYK) which is used in print media, additive colours is only used for multi media design because it never leaves the screen. See also Subtractive Colour
Colour that results from the mixture of 2+ coloured lights causing a visual blending of separate spots of transmitted coloured light.
Colour produced by light falling onto a surface, as compared to subtractive colour. The additive primary colours are red, green and blue.