Any dye, pigment, or substance that can impart color when added or applied to a food, drug, or cosmetic. Use of color additives in the U.S. is regulated by the Food and Drug Administration (FDA). Food Drug and Cosmetic (FDC) colors certified for food use are FDC Blue No. 1, No. 2, and No. 3; Green No. 3; Red No. 3 and No. 40; and Yellow No. 5 and No. 6.