Hsv (also known as Hsb) is similar to Hsl. They're both based on cylindrical geometries, but Hsv is based on a "Hexacone" model while Hsl is based on a "Double Hexacone" model. Read more about the differences on wikipedia.
Hsl is a cylindrical-coordinate representation of the Rgb color model. This representation rearranges the colors in an attempt to be more intuitive and perceptually relevant than the typical Rgb representation. It's frequently used for computer graphics applications like color pickers and image analysis.
Color conversions performed using the open source ColorMine library.
Cool! Creating famous images from color palettes found in other images: http://t.co/H1OxefkOt0