Color arithmetic (ConceptTopic, 7)

From Compile Worlds

Color arithmetic is a system that seems to baffle many people, even though it is extremely logical.

It goes like this:

-> Light ->
EmptyPrimarySecondaryFull
Black Red
Green
Blue
Cyan
Magenta
Yellow
White
FullSecondaryPrimaryEmpty
<- Pigments <-

You can easily read off the chart that, for example, magenta is a primary color of pigments.

When combining two primary colors to make a secondary color, you move in the direction of the arrows, and choose the color that is not on lines you already chosen. So when dealing with light, red (line 1) + green (line 2) makes yellow (line 3); when dealing with pigments, cyan (line 1) + yellow (line 3) makes green (line 2).