 The thrust of the Master Argument, powerful as it is, is largely negative. It seems to rebut all objectivist theories of color, whether the objectivist theory is one of the standard forms of color realism—physicalist realism or primitivist realism—or whether it is framed in terms of a disposition to appear, in characteristic ways, to normal perceivers in standard circumstances. On the face of it, only two candidates remain: Color Relationalism and Color Irrealism. Cohen holds that Color Relationalism provides the best solution to the problem outlined, but he concedes that Color Irrealism also offers a solution. He thinks that that view ought to be rejected, on independent grounds. The argument against Color Irrealism is that it is a “theory of last resort”, one that we should accept only after all other candidates have been rejected, when no other alternative remains. The crucial issue between these two theories, it would seem, is when Color Relationalism can account adequately for the phenomenology of visual experience. Cohen’s response to this problem is similar to that of Levin, in her defense of Color Dispositionalism (see Maund 2012).