Llibre d'observació i atenció que, a cada pàgina, dóna instruccions al lector per saber com ha de barrejar els colors.
Universal Colors are those considered to flatter everyone.
How to choose your brand colors
Figma: Color Wheel - Color Palette Generator
What Are Complementary Colors?
Flexible colors and themes for data visualizations, by Miru
Rules of color combination
color - Wiktionary, the free dictionary
Color, Definition, Perception, Types, & Facts
Colors (10 basic)
Colors - The CMU Brand - Carnegie Mellon University
Essential Colors to Learn in English - Busuu
Color Name List, List Of Colors - English Grammar Here English grammar, Colour names list, Colors name in english