These colors, from root to crown, are: red, orange, yellow, green, blue, indigo, and violet. This ROYGBIV sequence serves as a mnemonic device to help us easily recall the chakra color spectrum.

That’s because purple is a non-spectral color, meaning it doesn’t appear in the natural order of colors split by light. It’s not part of the electromagnetic spectrum.

The spectrum of sounds and musical colors heard in this year’s best scores extend from the subliminal (“Tár”) to the explosive (“She Said”), from childlike innocence (“The Banshees of ...

The Spectrum color stripe down the sides is deftly-executed. The full-color Spectrum logo on the shorts is an unvarnished throwback, no unnecessary tweaks, just pure uncut nostalgia.

Hummingbirds can see colors humans can only imagine, an ability that now sheds light on an extra dimension of animal vision, a new study finds. Compared to many other animals, humans are colorblind.

"An electrically charged glass display smoothly transitions between a spectrum of colors." ScienceDaily. ScienceDaily, 10 March 2021. <www.sciencedaily.com / releases / 2021 / 03 / 210310122549.htm>.