PSYCH 1XX3 Lecture Notes - Lecture 6: Subtractive Color, Additive Color, Dominant Wavelength
Document Summary
You don"t need a million colour receptors to deal with every conceivable colour out there in the world. Instead, you just need a few receptor types whose activity can be combined in various proportions to make every conceivable colour. The three primary colours can be combined in various proportions to make every colour in the spectrum. Primary colours are like a base colour, they cannot be reduced into other colours. There are no 2 colors that can be mixed to form primary colors but primary colors can be mixed to form all colors. Subtractive colour mixing is when coloured pigments selectively absorb some wavelengths and reflect others. It applies to the mixing of pigments, dyes, or paints. Called subtractive because every reflective surface absorbs (or subtracts) the colours that it does not reflect. Adding other pigments to that surface alters the combination wavelengths subtracted.
