It is made possible to perform appropriate color matching between devices irrespective of whether a printed material is print-output in color or monochrome from a destination device. The color characteristic of the destination device is obtained by printing a chart in which a predetermined density pattern is formed in the destination device and reading the color of the chart. Next, whether the chart output from the destination device is color or monochrome is determined. Then, color conversion parameters for reproducing the color characteristic of the destination device in an adjustment device are determined by printing the color chart in a case where the printed material is determined that formed in color or printing the monochrome chart in a case where the printed material is determined that formed in monochrome in the adjustment device.