Answer: roygbiv

AnswerCrossword Clue
ROYGBIVSpectral mnenomic
ROYGBIVColorful mnemonic
ROYGBIV"Name" used as a spectrum mnemonic
ROYGBIVShady fellow?
ROYGBIVPerson of color?
ROYGBIVRainbow mnemonic
ROYGBIVColorful guy?