UPDATE: I’ve posted links to all my code here.

I apologize, but I don’t have the time right now to go over how I made this, but I did want to take the time to show it off.

Copy the following to paste this app into web page:

<iframe scrolling="no" frameBorder="0" src="http://silverlight.services.live.com/invoke/77530/ColorPicker/iframe.html" style="width: 300px; height: 200px"></iframe>