Attached Link: http://ockhamsbungalow.com/Python/ColorPicker.zip

Yes, you'll have to download that GIF. Browsers are odd about sizing. Also, I found an old script that does what you want more directly: you type in a color name and it gives the RGB values. It uses a list of color names that's built into Python, so it's somewhat limited.... if your name doesn't match one of the hundred or so choices, it's out! The ZIP includes the list of choices.

My python page
My ShareCG freebies