 One of the virtues of this form of Color Physicalism is that it offers a plausible explanation for the phenomenon of color constancy, the fact that there is strong tendency for the same object to look to have the same color in a wide variety of illuminations. Against this claim, however, it has been argued that other theories have the resources to explain the phenomenon (to the extent that it occurs, for which there are certain limits—see Hardin 1988, Cohen 2009, Chirimuuta 2008.)