Not in the pink, clearly (3-6)

I believe the answer is:

off-colour

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'not in' is the definition.
The definition suggests an adjective which matches the answer.

I can't explain the remainder of the clue.

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(Other definitions for off-colour that I've seen before include "Unwell, lacking pigment?" , "Slightly unwell" , "Rather poorly" , "Unwell or mildly indecent" , "Not in the pink?" .)

I've seen this clue in The Independent.

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