Add Yahoo as a preferred source to see more of our stories on Google. You perceive electromagnetic radiation in the form of light in all the colors of the rainbow. MirageC/Movement via Getty Images ...

You might say it’s just a pigment of your imagination ...

The world is awash with the color purple — lavender flowers, amethyst gemstones, plums, eggplants and purple emperor butterflies. But if you look closely at the visible-light portion of the ...

The colors we perceive and the colors that impact our health are not the same. Without thinking, we tend to make decisions about the color of light and our surroundings based on what we perceive. But ...

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