Re: [csswg-drafts] [css-backgrounds] - Reappeal for Background Alpha's or Background Opacity | extremely useful for CMS's (#9910) from Tab Atkins Jr. via GitHub on 2024-02-05 (public-css-archive@w3.org from February 2024)

From: Tab Atkins Jr. via GitHub <sysbot+gh@w3.org>
Date: Mon, 05 Feb 2024 17:24:53 +0000
To: public-css-archive@w3.org
Message-ID: <issue_comment.created-1927524973-1707153891-sysbot+gh@w3.org>

This is addressed by the Color 5 [relative color syntax](https://www.w3.org/TR/css-color-5/#relative-colors), where you can write:

```css
.theme1 {
  --color: rgb(255 99 71);
  color: var(--color);
  background-color: rgb(from var(--color), r g b / 0.5);
  /* Use the --color variable, keeping r g b unchanged, but set the alpha to .5 */
}
```

-- 
GitHub Notification of comment by tabatkins
Please view or discuss this issue at https://github.com/w3c/csswg-drafts/issues/9910#issuecomment-1927524973 using your GitHub account


-- 
Sent via github-notify-ml as configured in https://github.com/w3c/github-notify-ml-config

Received on Monday, 5 February 2024 17:24:56 UTC