A color management system is provided that includes a color transformation unit that uses a profile connection space to perform a color transformation process on input image data based on an input side color transformation parameter associated with the input image data for translating an input device-dependent color value that describes the input image data into a device-independent color value of the profile connection space and an output side color transformation parameter for matching the device-independent color value to an output device-dependent color value. The color management system further includes an output device selection unit that enables a user to select at least two output devices from plural output devices that are available for selection, and a profile connection space generation unit that automatically generates the profile connection space according to a predetermined profile connection space generation method based on the gamuts of the output devices selected by the user.