1. A method of printing a reproduced image with an output printer with six-color output, wherein the reproduced image is a spectral and colorimetric match of a target image as from a target color device and wherein the target color device and the output printer are different, comprising the steps of: (1) building a six-color spectral printer model of the six-color output printer based on spectral measurements of the output of the six-color output printer; (2) obtaining a color spectrum of the target color device based on spectral measurements of the output of the target color device; (3) fitting the color spectrum of the target color device to the spectral model of the output printer; (4) mapping the target color device to the output printer based on the fitting, and (5) printing the second image on the output printer based on the mapping.