ugy

I did, from a beautiful little app called Sip, which allows sampling colours from anywhere on the screen, system-wide. It remembers and names the colours too: https://sipapp.io/ for anyone that's interested.

This is what I mean: hex_demo.mp4

If you start with a colour and you want to find a lighter/darker hue of it, the HSL sliders are the right tool for the job, regardless of how you then go on to use that colour.

I think you're missing the point. The sliders are useful for editing a colour, but as a web designer, I'm often pasting hex in from elsewhere as a starting point, and then also copying them out. That hex input box is also used as an output.

Hello! I'd like hex codes with lowercase letters (i.e. abcdef) to be shown as valid as they're being entered. It is currently unclear whether a hex code contains actually invalid characters or just has lowercase letters in. Also, it would be handy to have the hex colours interpreted as CSS does so that typing #fff and hitting return will result in #ffffff (white) and not as #000fff which is a blue.