Biological pigment symbiosis Trididemnum solidum, their colors are different depending on the light regime in which they live. The colonies that are exposed to full sunlight are heavily calcified, thicker, and are white. In contrast the colonies that live in shaded areas have more phycoerythrin (pigment that absorbs green) in comparison to phycocyanin (pigment that absorbs red), thinner, and are purple. The purple color in the shaded colonies are mainly due to the phycobilin pigment of the algae, meaning the variation of exposure in light changes the colors of these colonies. Aposematism is the warning coloration to signal potential predators to stay
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