Over at nostr:npub1c0mfs58sj48hdy6u9dvkp7cvvyv946dy9nwshns7ahv6klx0s47sekdylq, we launched a color contrast checker for working with new color formats like oklch, display-p3, and so on:

https://www.oddcontrast.com/

What other features would you want from a tool like this? We're interested in feedback and ideas.