Subtractive colours (occurs when mixing pigments like paint) based on what is reflected and what is absorbed.
Red reflects only red light & absorbs everything else.
Cannot be mixed/formed by any other colour combinations.
Different primary colour combinations applicable in different ares.
Standard computer monitor uses red, green & blue light – additive combination. Mixing these colours produces light of different colours.
Printing uses different combination – cyan, magenta & yellow. Subtractive set – based on what is reflected from paper.
Hard to produce black from the three colours so printers often have separate black.
Formed by mixing primary colours.
Formed by mixing one primary and one secondary colour.