Short description of ColorPickUp 1.1.0.0: It can Pick Up almost any color from desktop and copy it into clipboard as text - in C/C++ (RGB) or HTML format. It can also assign it to some system color (Desktop, Window, etc.).
It can get reverse color and get average color within some rectangle.
You can place it into System Tray (where clock ticks).
You can also start (from it's quick start menu) color relative programs.