Abstract: The invention discloses a method for processing color data based on an HGlCl color space of with a color appearance attribute. The method comprises: acquiring color data in an HGlCl format in the HGlCl color space with a color appearance attribute; selecting two color data in the HGlCl format from the acquired color data in the HGlCl format; performing a color addition and/or color difference operation on the selected two color data in the HGlCl format to generate one color data in the HGlCl format. The method further comprises converting the color data in the HGlCl format generated by the operation into color data in a CIE XYZ format. By the method of the invention, color error judgment, and color prediction and matching and compensation can be conveniently performed. Besides, the conversion calculating process in the invention is accurate, simple and fast in the conversion speed.