To make otherwise unobtainable colours. In other words, if you want a colour that isn't red, blue or yellow (prime colours) then you mix them together to get that colour.
The purpose and the use of color is that it appeals to the eyes and passes out a given information depending with the color.
The color varies
whats yandel's favorite color and number?
whats the color circuit for the blinkers an break lights?
pink
purple
Wa
its green
Nobody knows
you can't see color
Whats your Favorite Color? Whats Your Favorite T.V Show? Whats Your Favorite Song? Whats Your Favorite Book?
whats up with the non- making-sense question........