To improve the compatibility of a color hard copy material used for a digital color printer with conventional devices when the specification of devices are changed, and, in particular, to improve the compatibility of color reproducibility to avoid such problems that the color of images differs from that of a conventional material.

In the color hard copy material where the final color print is obtained from a Y(yellow) image showing an absorption max. in the 400 to 460 nm range, a M(magenta) image showing an absorption max. in the 510 to 570 nm range, a C(cyan) image showing an absorption max. in the 600 to 700 nm range, and a K(black) image, all formed according to digital image data (signals), the main color image forming medium comprising Y, M and C color image forming materials contains another color image forming materials having different Y, M and C relations from those of the main color image forming body by 1 to 20 mol% of the main color image forming material.