You can view color schemes in a variety of ways, by moving the pointers and/or selecting color scheme type. This is a monochromatic scheme in red.
This scheme is monochromatic greens
Beneath the scheme, you will find the RGB and HEX values
You can also opt to explore schemes in a variety of ways.
The above are popular themes
You can select a theme and select edit to find the RGB and Hex Values for that theme.
You can create color schemes from images [on your pc, Kuler will allow you to target one of your pictures].