The FeltNone

The FeltNone is often referenced in the context of descriptive color terms, originating from the research on color perception. It describes a hypothetical color that exists beyond human visual capabilities, representing the absence or the extreme extreme of a color spectrum. Essentially, it's a concept used to explore the limits of how we perceive colors, illustrating the boundary between perceivable and unperceivable hues. While not a real color detectable by the eye, FeltNone helps scientists understand the range of human color perception and how our visual system interprets different wavelengths of light.