Many of us develop strong attachments to particular colors, but purple brings out the most focused and enthusiastic devotion. What makes purple so distinctive? Part of the answer comes from optics.

Purple: It's the color of Barney the dinosaur, certain iris blooms, and eggplant. However, scientists now say that the color we know as purple may not actually exist. That is going to come as ...

The human eye does not actually see purple, as purple is not a color on the visual spectrum. Purple is a combination of wavelengths from opposite extremes of the spectrum, which technically deosn’t ...