RadialHuePicker

The RadialHuePicker control renders a circular gradient of the color spectrum and uses a radial slider to select a color hue.

Sample XAML

This control can be placed within any other XAML container control, such as a Page or Panel with this sort of XAML:

<editors:RadialHuePicker Hue="{Binding Path=YourVMProperty, Mode=TwoWay}" />