Colour Theory

For homework our teacher asked us to learn our colour theory. This is very important in make-up as you need to know what colours will counteract each other. you work this out by taking colours from the opposite sides of the colour wheel. For example a peach toned concealer would counteract any blue tones under the eyes as orange is opposite blue on the colour wheel.
This theory can also be applied to someone's eye colour for example my eyes are a yellow green so a purple or cranberry tone would bring out the colour of my eyes.