The prediction of color appearance using the RLAB color space has been tested for a variety of viewing conditions and stimulus types. These tests have shown that RLAB performs well for complex stimuli and not-so-well for simple stimuli. This article reviews the various psychophysical results, interprets their differences, and describes evolutionary enhancements to the RLAB model that simplify it and improve its performance.

Publication Date



This is the pre-peer reviewed version of the following article: Fairchild, M. D. (1996), Refinement of the RLAB color space. Color Research and Application., 21: 338–346., which has been published in final form at DOI: 10.1002/(SICI)1520-6378(199610)21:5<338::AID-COL3>3.0.CO;2-Z

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Document Type


Department, Program, or Center

Chester F. Carlson Center for Imaging Science (COS)


RIT – Main Campus