Smooth and simple
The upload of your own image is really swift, and it's easy to move the selection circle to any part of it. The main colours of the image are laid out in a bar below as well, and you can easily copy the hex or RGB value. In addition, you're not assailed with masses of pop-up ads or pleas to rate the service (after using it for ages I've only just found a tiny rating link at the bottom of the page). Clean, simple and free, nice one guys 👍