Mastering color in painting is often a matter of combining a
willingness to experiment with mixing colors as well as
understanding the color wheel and color theory. Most artists
develop their own color mixing chart—or several—and work on
recognizing color relationships (primary, secondary, tertiary;
complementary colors; warm vs. cool colors) and how colors vary
in tone and intensity. Color is one of the most expressive
aspects of painting, as well as one of the most subjective.