A spectral color is a color that is evoked by a single waveleng... - dofaq.co
spectral color

A spectral color is a color that is evoked by a single waveleng...

wikipedia - 16 Feb 2017
A spectral color is a color that is evoked by a single wavelength of light in the visible spectrum, or by a relatively narrow band of wavelengths, also known as monochromatic light. Every wavelength of visible light is perceived as a spectral color, in a continuous spectrum; the colors of sufficiently close wavelengths are indistinguishable.

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