COLOURlovers is a really cool community website based on the world of color, following color news and trends, as well as featuring interesting user created color palettes. Recently they did a great blog post on butterfly color palettes, featuring the color combinations of 18 different butterflies.
One particular place to find amazing colors in nature is the Butterfly and lucky for us there are 17,500 species of butterflies in the world.
They use their bright colors to ward of predators by tricking them into thinking they are poisonous (some actually are) or by camouflaging themselves into plants or bigger insects.
photo credit: Steve Chilton