Numerals in black and blue (5)

I believe the answer is:

livid

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'black and blue' is the definition.
(I've seen this before)

I can't explain the remainder of the clue.

(Other definitions for livid that I've seen before include "Enraged" , "Intensely angry - dark bluish grey" , "Black and blue" , "Fuming" , "Black-and-blue - furious" .)

I've seen this clue in the Evening Standard.

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