For the past six years, the Danish-Icelandic artist Olafur Eliasson has been working with a color chemist to produce paint pigments that correspond to each nanometer of the visible light spectrum.

Colloidal photonic glasses offer an appealing way to produce vivid colors without any chemical dyes—but so far, a stubborn ...

Daltonism is a specific type of red-green color vision deficiency, also known as color blindness. People with red-green color vision deficiency may confuse colors that contain red or green elements.