Crossword Genius

Vibrant, as crayon colors (4)

Ross

I believe the answer is:

neon

<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">vibrant as crayon colors</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>

(Other definitions for neon that I've seen before include "Brightly coloured advertising sign" , "Could it brighten proceedings" , "Noble gas used in illuminated signs" , "Gas used in fluorescent lighting" , "Sign gas" .)

I've seen this clue in the Newsday and the Newsday.com.
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