Color wheel or picker to custom field

Hi community!

I thought of a simple plugin. A color wheel or color picker which stores the HEX code from the picker/wheel in a custom field.

In that way you can develop quite advanced themes, with let’s say different color-themes for unique posts/pages.

Off course it’s that big a problem to grab the HEX code from Photoshop and add it to a custom field manually. But for client sites, a visual based plugin would be great!

So to the essense – I’ve searched Google and the WP plugin library, but with no luck. Have anyone else heard of such a thing? A plugin to achieve this…