Nattyware Pixie is a Free Portable Color Picker. Pixie can be used to display the HEX, HTML, RGB, CMYK, and HSV values of any pixel color presented on your screen. Once Pixie is running, simply drag your mouse pointer over the selected area and the details of the color at that pixel are displayed. The colors can then be reproduced and used in your favorite color editor.
Portable Color Picker - Nattyware Pixie Screenshots
Nattyware Pixie will dock itself in the Taskbar for easy access:
Authors Website: http://nattyware.com/pixie.php
Download: You can download Pixie HERE