Ma'anar ƙamus na "mai launin jan ƙarfe" shine samun launin ja-ja-jaja na jan karfe, wanda wani nau'in ƙarfe ne wanda ke da bambancin launin ja-orange lokacin da aka fito da shi. "Copper colored" kuma yana iya nufin kowace inuwa ko sautin da ya yi kama da launin jan karfe, kamar launin ja-launin ruwan kasa, tsatsa, ko launin tagulla.
