Определение off-colour в Английский Язык Английский Язык словарь
If you say that someone's performance is off-colour, you mean that they are not performing as well as they usually do. Milan looked off-colour but eventually took the lead in the 82nd minute
off-colour in AM, use off-color1. If you say that you are feeling off-colour, you mean that you are slightly ill. For three weeks Maurice felt off-colour but did not have any dramatic symptoms. = out of sorts