Imagine a world without color – for that is what really exists. All the objects that surround us have no color. Color exists only in our minds. Color is a visual sensation that involves three elements – a light source, an object and a viewer. Light from the sun or another light source strikes objects around us, is reflected and modified by the objects, then reaches the receptors in our eyes and is interpreted by our brains into something we call color. Since color only exists in our minds, explaining the physical aspects of color is just part of the story. The way objects appear to us and the judgements we make about color are determined by a combination of many factors.

What is color?