The recommendation of the CIE has been followed (is closely as possible to evaluate the accuracy of five color gamut mapping algorithms (GMAs)-two non-spatial and three spatial algorithms-by psychophysical experiments with 20 test images, 20 observers,. one test done oil paper allot a second one oil display. Even though the results do not show any overall "winner," one GMA is definitely perceived as not accurate. The importance of a high number of test images to obtain robust evaluation is underlined by the high variability of the results depending on the test images. Significant correlations between the percentage of out-of-gamut pixels, the number of distinguishable pairs of GMAs, and the perceived difficulty to distinguish them have been found. The type of observers is also important. The experts, who prefer a spatial GMA, show a stronger consensus mid look especially for a good rendering of details, whereas the nonexperts hardly make a difference between the GMAs. (c) 2008 Wiley Periodicals. Inc. Col Res Appl. 33. 470-476. 2008: Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/col.20443