The 'composition of color' refers to the way colors are mixed and combined to create different hues, shades, and tones. This concept is fundamental in art, design, and color theory. Colors can be mixed additively (like in light) or subtractively (like in pigment mixing). Additive color mixing is used in technology, such as TVs and computer screens, where red, green, and blue light are combined to produce a wide spectrum of colors. Subtractive color mixing, on the other hand, is used in printing and painting, where pigments are mixed to produce colors.