Click on a color to lock it. Click on any square to unlock.
Here's the color code to match up the RGB in paint.
Red
Green
Blue
Select a color from the pop-up menu in the form and click the Submit button.
You will then be presented with a page that uses the selected color as a
background. All colors will be displayed against the
background color so you can quickly check to see how a large variety of colors
will appear.