Color Scheme Designer is a web-based application that provides a high quality experience for creating color schemes online.
The color wheel lets users to define a scheme based on a single color or more by adding more controls to it.

With 15+ presets, ability to control the saturation/brightness & contrast levels, it is possible to switch between variaties of the color schemes created.
A great feature is the ability to preview the colors used on different outputs like a scheme or a webpage preview.
Designers, who wonder the RGB of any color that is around their mouse can get the results instantly.
Small utility named Pixie, runs on your system tray, you can call it with a click and it will show you HEX, RGB, CMYK & HSV values of any pixel you’re pointing.

Many designers take a screen capture, run their favorite image editing software like Photoshop, Fireworks and paste the capture to the image editing software to get the image color values. With Pixie, no need for these steps.
An extra feature of Pixie is, it shows the x y position of the mouse pointer.
Compatibility: Windows OS