Unidentified photographer / artist n.d. The subtractive process Private collection of Robert Hirsch The subtractive process allows almost any color to be formed by removing certain colors from white light while permitting other colors to pass. The subtractive primary colors in photography are cyan, magenta, and yellow. They are the complementary colors of the additive primaries: red, green, and blue. Black is formed when equal amounts of all three of the subtractive primaries overlap.
