According to recent physiological research results, there are many individual differences already at the detection level of our color vision system. It is not completely clear yet, how the other levels of color vision system compensate the detection differences. Instead of detecting and analyzing colors exactly in the same way, we all just have learned to classify colors in a certain way, which seems to lead almost always to the same result independent of the individual differences in the color vision system. In this article, we experiment with four models developed for replicating certain properties of human color vision. We examine the color classification abilities of these models and show the differences and similarities in their behavior. (C) 2010 Wiley Periodicals, Inc. Col Res Appl, 36, 266-271, 2011; Published online 8 November 2010 in Wiley Online Library (wileyonlinelibrary.com). DOI 10.1002/col.20632