By the 1970s, because of the advent of psychedelic art, artists became used to brighter pigments, and pigments called " bright indigo " or " brite blue-violet " that are the pigment equivalent of the electric indigo reproduced in the section above became available in artists ' pigments and colored pencils.

By the 1970s, because of the advent of psychedelic art, artists became used to brighter pigments, and pigments called " Violet " that are the pigment equivalent of the electric violet reproduced in the section above became available in artists pigments and colored pencils.

By the 1970s, because of the advent of psychedelic art, artists became used to brighter pigments, and pigments called " purple " or " bright purple " that are the pigment equivalent of electric purple became available in artists pigments and colored pencils.

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