rgbaFromHex

[rtfeldman]

This needs to be implemented: https://github.com/rtfeldman/elm-css/blob/master/src/Css.elm#L635-L643

Semantics:

• Should work with hexadecimal strings of length 3, 4, 6, or 8 (the 4 and 8 would include alpha, just like in CSS)
• If you give it a crazy value, like you use non-hexadecimal chars or a crazy length, it should return appropriate warning messages

Relatedly, there should probably also be a rgbaFromHsla that works similarly except for HSLA colors.

[lukewestby]

These functions should return a Color property with an rgba(r,g,b,a) value?

[rtfeldman]

It's actually that I changed Color to include red, green, and blue values, so you can now go (rgb 22, 23,224).red and get back 22. This lets people do color mixing and such.

This is where the function lives now: https://github.com/rtfeldman/elm-css/blob/master/src/Css.elm#L844-L854

Incidentally, here's the equivalent for hsl and hsla: https://github.com/rtfeldman/elm-css/blob/master/src/Css.elm#L860-L867

[lukewestby]

got it! i can do this one tonight or tomorrow.

[rtfeldman]

Awesome! 😸

[rtfeldman]

Closing in favor of #76 cc @lukewestby - turns out having the records have a color : Color field (as in Color from core) will be more beneficial to people writing generic color mixing libraries, and I think it makes more sense to optimize for that use case than for the "pulling out red, green, or blue on an individual basis" use case.

[lukewestby]

sweet! that's awesome 🤘