Colorblind Assistant grabs colors from the mouse pointer. This software provide information about colors from the mouse pointer. It also provides you with other useful data such as RGB values and bar graphs, brightness and saturation.
The program also has a zoom pane for fine pixel detection, and sits nicely in your desktop tray when not in use. Colorblind Assistant runs in a small 192x128 window that you can easily use alongside graphics programs, applications, games, video-editing program and movie players. The pixel data updates in real-time, so use with animations and movies is just as easy as still images.

The license of this software is Freeware, you can free download and free use this graphing software.