I see that DuckDuckGo is already doing "sort" of thing you are proposing but only from HEX.
DDG is using API of some other site but what I like is that you can see the actual color (in color box).. But conversion to RGB is not working... =(
[if you type e.g.: #ff0000 ]

So it will be nice and really helpful (at least for me =) if you can make something similar but better =)
posted by [UserVoice Pavel] • 6 years and 8 months ago Link