Roy G. Biv
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<!-- /jumpto --><!-- bodycontent -->This article is about the mnemonic. For the comic book character named Roy G. Bivolo, see
Rainbow Raider.
The conventional seven colors of the rainbow- Displays the visible part of the electromagnetic spectrum
ROYGBIV is an acronym for the visible part of the electromagnetic light spectrum:
A rainbow spans a continuous spectrum of colors; the distinct bands are an artifact of human
color vision. In
ROYGBIV, the colors are arranged in the order of decreasing
wavelengths, with red being 650
nm and violet being about 400 nm. The reverse
VIBGYOR is used in many Commonwealth countries
