ABSTRACT
Chromatic surrogacy can be explained by appeal to awareness of perspectival chromatic qualities, or colluminations. This chapter shows how issues in the philosophy of art inform the philosophy of perception because facts about the depiction of colour are important for understanding collumination. Spatial perspective has received more attention, and is a little easier to understand, than its chromatic counterpart. Some uniformly illuminated and mediated (surface-coloured) scenes present much the same patterns to the eyes as irregularly illuminated and mediated (surface-coloured) but differently surface-coloured (illuminated and mediated) scenes do. To be fully general, patterns that share neither illumination, medium, nor surface colours can nevertheless, somehow, be chromatically similar, and perceived as such. Hilbert, D. makes a case for adding a single dimension to surface appearance largely by focusing on intensities of illuminants and not their chromatic features since he thinks, properly speaking, illuminants are not coloured.
