What does the Color Opponency theory suggest?

The Color Opponency theory suggests that colors are perceived in pairs, specifically in opposing sets of colors. This theory posits that our visual system processes colors through three opposing pairs: red-green, blue-yellow, and black-white. In this context, the perception of one color within a pair can inhibit the perception of the other color. For example, when we look at a vivid red, the perception of green may be suppressed, and vice versa.

Understanding this theory is pivotal in explaining how we experience color contrasts and illusions. The simultaneous contrast effect, where two colors appear different based on the surrounding colors, further illustrates how our perception is influenced by these opposing color pairs. The Color Opponency theory is fundamental in various fields, from color vision research to art and design, because it highlights the interplay of colors rather than their existence as isolated entities.