Blue-sensitive cones do not contribute to luminance.
By using violet backgrounds we selectively altered blue-cone sensitivity but found no change in flicker photometric sensitivity. This indicates that blue cones do not contribute to luminance as defined by flicker photometry.
D003118:Color Perception / Q000502:physiology*; D005425:Flicker Fusion / Q000502:physiology; D006801:Humans; D008027:Light; D010783:Photometry; D010786:Photoreceptor Cells / Q000502:physiology*