Thus, artists must be fully aware of the moods created and messages conveyed though the colors used in their pieces. This is significantly true of art used for educational purposes. The association of mood or feeling with color is uniquely human. For most people, different colors represent different moods. For more about the psychology of color, see Wade Rollins' EET article.
Artists also combine colors to create different moods.
For example, the colors yellow, orange and red combine to create a 'warm' mood. Green, dark blue and violet combine to create a 'cool' mood. With paint, 'neutral' colors are created by mixing two complementary colors in unequal parts with white. This creates colors like olive green, kakis and dark browns. For more about the complimentary colors, see Beverly Vader's EET article.