The best Color Wheel for your work.
Mini colour wheel.
Great tool for every technician to predict colour correction and warm or cool tones.
Color Wheel is a perfect tool to learn the mystery of the color theory. It is the great guide to mixing colors, color relationships,shades, tones and tints; demonstrates how the colors are affected by each other to help you choose the perfect mixture of pigments for your procedures.

Tip: learn more about the Color Wheel from the Youtube: