Blue is one of nature's rarest colors. Indigo, a dye obtained from the tiny leaves of small parasitic shrubs that are part of the Indigofererearsa tribe, creates the bluest of blues. For almost five ...

Many people remember the colors of the rainbow by the acronym ROY G. BIV. For red, orange, yellow, green, blue, indigo and violet. Well, the color indigo just made news. Indigo gets its name from the ...

Rainbows form when sunlight interacts with water droplets in the air. Light bends, splits into colors, reflects inside the droplets, and then bends again as it exits, creating the visible spectrum.