Philosophy of color
The philosophy of color is a subset of the philosophy of perception that is concerned with the nature of the perceptual experience of color. Any explicit account of color perception requires a commitment to one of a variety of ontological or metaphysical views, distinguishing namely between externalism/internalism, which relate respectively to color realism, the view that colors are physical properties that objects possess, and color fictionalism, the view that colors possess no such physical properties.