Summary of colors theory

The 3 primary colors are red, blue and yellow, if you mix them together you will make secondary colors, for example if you mix red and yellow you will get orange.
Tertiary colors are created by mixing a secondary color with a primary one, for example if you mix blue with magenta you will get purple.
The most difference between subtractive and additive color models is that the first one use CMYK and the second one RGB color. Our perpeption is effected by colors in the background that make colors brighter and darker.

               GREY SCALE IMAGE                                                          COMPLIMENTARY COLOR IMAGE

MONOCHROME IMAGE