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
This Is Colour This Is Colour's extensive merchandise included the popular line of 'Stay Rad' t-shirts and vests. This phrase inspired a whole array of rip off's and alternative uses. This Is Colour didn't invent the phrase, but they were the first to print it. This Is Colour This Is Colour are a progressive power groove band from Suffolk, UK. They are currently unsigned but have a previous release, "No Brainer", through Thirty Days of Night Records. This Is Colour formed in the summer of 2005, out of previous projects from the original members, Tom Cronin, Luke Truman, Keir Atkinson, Nicholas Cheshire and