Philosophers and scientists have long speculated about the nature of color. Atomists such as Democritus thought color to be "conventional," not real; Galileo and other key figures of the Scientific Revolution thought that it was an erroneous projection of our own sensations onto external objects. More recently, philosophers have enriched the debate about color by aligning the most advanced color science with the most sophisticated methods of analytical philosophy.
In this volume, leading scientists and philosophers examine new problems with new analytic tools, considering such topics as the psychophysical measurement of color and its implications, the nature of color experience in both normal color-perceivers and the color blind, and questions that arise from what we now know about the neural processing of color information, color consciousness, and color language. Taken together, these papers point toward a complete restructuring of current orthodoxy concerning color experience and how it relates to objective reality. Kuehni, Jameson, Mausfeld, and Niederee discuss how the traditional framework of a three-dimensional color space and basic color terms is far too simple to capture the complexities of color experience. Clark and MacLeod discuss the difficulties of a materialist account of color experience. Churchland, Cohen, Matthen, and Westphal offer competing accounts of color ontology. Finally, Broackes and Byrne and Hilbert discuss the phenomenology of color blindness.

The Red and the Real offers a new approach to longstanding philosophical puzzles about what colors are and how they fit into the natural world. Jonathan Cohen argues for a role-functionalist treatment of color-a view according to which colors are identical to certain functional roles involving perceptual effects on subjects. Cohen first argues (on broadly empirical grounds) for the more general relationalist view that colors are constituted in terms of relations between objects, perceivers, and viewing conditions. He responds to semantic, ontological, and phenomenological objections against this thesis, and argues that relationalism offers the best hope of respecting both empirical results and ordinary belief about color. He then defends the more specific role functionalist-account by contending that the latter is the most plausible form of color relationalism.