Color theory is the study of how different colors interact and how they are used in art. It helps us to understand how colors look when used together and how to create different looks with color. Colors are made up of three main elements: hue, value, and saturation. Hue refers to the basic colors like red, blue, yellow, green, etc. Value is how light or dark a color is, and saturation is how rich and intense a color is. Different hues, values, and saturations are mixed together in different combinations to create different colors. Different colors look different when used together, so it helps us to understand how to use colors to create beauty and harmony in our artwork.