Does style="color: #FFF;" render as #F0F0F0 or #FFFFFF?

Posted by Dolph Mathews on Stack Overflow See other posts from Stack Overflow or by Dolph Mathews
Published on 2010-05-24T18:15:51Z Indexed on 2010/05/24 18:21 UTC
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html

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css

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color

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hex

When defining colors using "shorthand hexidecimal" (style="color: #FFF;"), is there a defined method for expanding the shorthand? (style="color: #F0F0F0;" or style="color: #FFFFFF;")

Do all browsers use the same expansion method? Is this behavior by specification (if so, where is it defined)? Does the expansion method perhaps vary between CSS 1/2/3?

I've observed that "most browsers" expand to #FFFFFF.

Are there any other places where this shorthand notation is allowed, but the expansion method is different?

I've always avoided using shorthand hex, because I've never known the answers to these questions...

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