`colorspace` and `alpha` attributes on `<input type="color">`

[zcorpan]

Specification title

colorspace and alpha attributes on <input type="color">

Specification or proposal URL (if available)

https://html.spec.whatwg.org/#color-state-(type=color)

Explainer URL (if available)

No response

Proposal author(s)

@annevk

MDN URL

No response

Caniuse.com URL

No response

Bugzilla URL

https://bugzilla.mozilla.org/show_bug.cgi?id=1919718

Mozillians who can provide input

@zcorpan

WebKit standards-position

No response

Other information

WebKit blog post: https://webkit.org/blog/16900/p3-and-alpha-color-pickers/
Spec PR: whatwg/html#10456

[zcorpan]

cc @tiaanl @emilio

[zcorpan]

These seem like useful additions. Suggest positive.