Re: [csswg-drafts] [css-color] Clarification needed on how missing alpha components flow through relative color syntax for hsl/hwb (#10254) from Chris Lilley via GitHub on 2026-01-27 (public-css-archive@w3.org from January 2026)

From: Chris Lilley via GitHub <noreply@w3.org>
Date: Tue, 27 Jan 2026 19:19:13 +0000
To: public-css-archive@w3.org
Message-ID: <issue_comment.created-3807054865-1769541551-noreply@w3.org>

Proposed resolution: missing alpha values are preserved during serialization, and thus serialize in modern syntax (which allows `none`)

```
a.style.backgroundColor = "rgb(100 100 0 / none)";
a.style.backgroundColor // 'color(srgb 1 1 0 /  none)'
```

-- 
GitHub Notification of comment by svgeesus
Please view or discuss this issue at https://github.com/w3c/csswg-drafts/issues/10254#issuecomment-3807054865 using your GitHub account


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

Received on Tuesday, 27 January 2026 19:19:14 UTC