as a uk ref i will agree that the only colour that would be frowned upon is orange, as most paint is that colour .
pink on the other hand is fine , the thought behind this is that pink paint has staining quality's when "applied" to clothing , so due to customer feedback it has been pushed out of the paint manufacturing scene this and also blue is a nasty paint.!
hope that gives you a kind of official standing
tommy"the uk ref"webb