typically consists of a variety of wavelengths, thereby creating a mixture, and as a result, not falling along the visible light spectrum. An example of an extraspectral hue is the colour purple, which is a mixture of long and shorter wavelengths of light.

EXTRASPECTRAL HUE: "Purple and white are typical examples of an extra spectral hue; otherwise known as a non spectral hue in some art contexts."
Cite this page: N., Pam M.S., "EXTRASPECTRAL HUE," in PsychologyDictionary.org, May 11, 2013, https://psychologydictionary.org/extraspectral-hue/ (accessed September 24, 2021).