Color in color pictures

Quick answer：

Color in color pictures refers to the use of various hues, tones, and shades to convey meaning and evoke emotions. It is a fundamental aspect of visual communication in photography, graphic design, and art. Colors can be organized on the color wheel, which is a circular diagram that shows the relationships between primary, secondary, and tertiary colors. The color theory is a body of guidelines for using color in art and design, and it includes concepts like complementary colors, analogous colors, and color harmony.