Respiratory pigment Respiratory pigment A respiratory pigment is a molecule, such as hemoglobin in humans and other vertebrates, that increases the oxygen-carrying capacity of the blood. The four most common invertebrate respiratory pigments are hemoglobin, hemocyanin, hemerythrin and chlorocruorin. Hemoglobin is bright red when oxygenated, and dark red(purplish) when deoxygenated, oxygenated hemocyanin is blue in colour, deoxygenated it is almost colourless. Oxygenated chlorocruorin turns from green to red, whereas oxygenated hemerythrin is a violet to pink colour and colourless when deoxygenated. Any of various coloured conjugated proteins, such as hemoglobin, occur in living organisms and function in oxygen transfer in cellular respiration.
Blue Is the Colour (song) of the Norwegian team Molde FK also use a variant of a song, where the title ("Blått er vår farge") directly translates to "Blue is our colour". The rest of the refrain is somehow altered, however. An adapted version called "Green is the Colour" is the official fight song of the Saskatchewan Roughriders of the Canadian Football League (Canadian football, not soccer.) This should not be confused with the Pink Floyd song "Green Is the Colour". The song was used as the basis for a campaign record used by the successful Conservative campaign in the 1979 general election. The song