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color names - CSS techniques for WCAG

From: by way of Wendy A Chisholm <karl@la-grange.net>
Date: Wed, 07 Mar 2001 09:42:35 -0500
Message-Id: <>
To: w3c-wai-gl@w3.org
Just for clarification :)

The techniques for the color contrast seems to be very vague. Example and 
deprecated example are about color names and not about color contrast.

There seems to have no writtent rationale for the use of color numbers in 
the document WCAG10-CSS-TECHS. I'm looking for it(?) Any help? :)


9.1 Color contrast

Checkpoints in this section:
*	2.2 Ensure that foreground and background color combinations provide 
sufficient contrast when viewed by someone having color deficits or when 
viewed on a black and white screen. [Priority 2 for images, Priority 3 for 

*	Use numbers, not names, for colors.

Karl Dubost - http://www.la-grange.net/
Près de vous, madame, oubliant les cieux,
L'astronome étonné se trouble;
C'est dans l'éclat caressant de vos yeux,
Qu'il avait cru trouver l'étoile double.
Received on Wednesday, 7 March 2001 09:31:55 UTC

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