Computer software has been created to assist color reproduction engineers in the evaluation of color printing equipment. The software system uses scientific visualization techniques to allow engineers to view and interact with color data. The system is based upon a modular data flow architecture. Color gamut visualization applications are constructed by connecting data flow modules in a visual environment to build application networks. Modules have been programmed for reading and generating color data, transforming color data, and displaying color data. Applications can incorporate advanced visualization techniques to simultaneously analyze multiple color data sets. New modules can be added to the system to support future developments in color reproduction and scientific visualization.