xyzd50_srgb = 0.436040 0.222487 0.013931 0.385068 0.716884 0.097105 0.143102 0.060626 0.714279 ICC stored matrix = xyzd50_srgb * inverseof ( out_rgb ), with out_rgb == identity_3x3 = xyzd50_srgb * inverseof ( identity_3x3 ) = xyzd50_srgb * identity_3x3 = xyzd50_srgb