Pixie is a super-simple portable color picker utility providing live results as you move across your target.
There are zero settings, and it is not sizable. But it does offer hotkeys for Copy HTML, Color Mixer, and Magnifier that can be changed to a users' choice.
Pixie will be perfect for web designers, graphic artists, or anyone hunting for cool colors for your own use. Just run Pixie, point to the color, and it will tell you the HTML, HEX, RGB, CMYK, and HSV values of color. Then you are free to use these values to reproduce the color. Pixie also shows the current X/Y position of your mouse.