Nice.  

To use, you simply click on "Colour Scheme", pick your colour, Click "GO" and then click the "RGB Browser" tab again.

It gives the HEX number, but also for painters, it gives the percentage of paint colour to add to the mix to get that particular colour.

So you might want to post this in the 2D Artist forum too for those who do oil painting.

"It is good to see ourselves as others see us. Try as we may, we are never
able to know ourselves fully as we are, especially the evil side of us.
This we can do only if we are not angry with our critics but will take in good
heart whatever they might have to say." - Ghandi