[Webkit-unassigned] [Bug 56461] New: Add #RRGGBBAA and #RGBA as options for color hex values in CSS

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=56461

           Summary: Add #RRGGBBAA and #RGBA as options for color hex
                    values in CSS
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: UNCONFIRMED
          Severity: Enhancement
          Priority: P2
         Component: CSS
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: paul.neave at gmail.com


Currently the only way to specify a color with an alpha value is to use the rgba() syntax, such as:

.my-color {
    color: rgba(255, 255, 255, 0.5); /* half white */
}

This can become very unwieldy to write. A more succinct syntax could extend the current format of #rgb or #rrggbb to include #rgba or #rrggbbaa like so:

.my-color {
    color: #ffffff80; /* half white */
}

The browser could easily detect the difference between a 3 or 4 character hex value, or a 6 or 8 character hex value, and implement the alpha channel as appropriate.

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