operates on RGB. If you want to you can make your own. comes with crate, dirt, grass and rainbow.
(https://www.google.com/search?q=hex+color+picker&rlz=1C5CHFA_enUS1004US1005&oq=hex+&aqs=chrome.1.69i57j0i433i512l4j0i433i457i512j0i433i512l2j0i131i433i512j0i433i512.2932j0j7&sourceid=chrome&ie=UTF-8) for help on RGB
