Evolution of human colour vision that are found between 450 and 625. Individuals with various forms of colour blindness such as deuteranopia and protanopia are missing human middle wavelength sensitive or long wavelength sensitive opsins. Their minimum wavelength differences are <5 but only at around 500. Protanopes, who are missing long wavelength sensitive cones, are unable to distinguish between colours in the green-yellow-red section of the electromagnetic spectrum. They find yellow, red and orange colours to have much lower brightness when compared to a trichromat. The dimming of these colours can result in confusion in many cases, such as when attempting to identify red traffic
Oh In Colour Oh In Colour Oh In Colour was a comedy television sketch programme broadcast on BBC 2 in 1970. It ran for one six-episode series from September to November 1970. It was written by and featured Spike Milligan, who was accompanied by different stars every week. It was shown after the thoroughly more popular Q5, also written by Milligan and Neil Shand. It is likely the programme was written to bridge the long production gap between Q5 and the next series, Q6, which did not appear on TV screens until 1975. (Milligan later complained of the BBC's cold attitude towards the