Whats its color

http://whatsitscolor.com/ 

Whats its color is an image-color processing utility that will evaluate an image and give you the image's primary and complementary dominant colors of an image, how many visually unique colors are in an image, and the top ten visually unique colors in an image. Extremely useful when creating any type of designs around an image. The more colorful the image, the better the results. Results will display your image on the best suited background for that image...