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RE: Colour contrast on logos

From: Roel Van Gils <roelvangils@gmail.com>
Date: Wed, 18 Jan 2006 11:01:35 +0100
To: <w3c-wai-ig@w3.org>
Message-ID: <000d01c61c16$2bb5f0c0$647ba8c0@roeldesktop>
Interesting question. I believe it's fair to consider the logo to be a
'decorative' image if the rendered text is repeated somewhere else on the
page (in the title of the page for example).
But if the logo also serves as a link, you should probably consider using an
alternate, more legible version (most logos also come in
colour/greyscale/b&w version for fax sheets etc.).
Another nice example of an 'alternate' logo is the audio logo on the website
of Vision Australia: http://www.visionaustralia.org.au/.
Kind regards,
Roel Van Gils


Van: w3c-wai-ig-request@w3.org [mailto:w3c-wai-ig-request@w3.org] Namens
Robert Walpole
Verzonden: woensdag 18 januari 2006 9:43
Aan: w3c-wai-ig@w3.org
Onderwerp: Colour contrast on logos


I have been doing some accessibility testing on a website with a view to
achieving WAI AA compliance. Obviously that has included analysing the
colour contrast of text and background and all of the actual text now has
sufficient contrast. What I'm not sure about though is how this guideline
applies to logos? We have a new logo which is used on the page in a couple
of places as a gif image. The logo is basically some text in a pale green on
a white background - not a sufficient contrast for text by any measure but
as this is a logo does it matter? I can add title and alt attributes to the
image but is this sufficient for compliance purposes or should we really go
back to the designer and request a more accessible logo?

I look forward to your comments. 

Many Thanks 
Rob Walpole 
Devon Portal Project 
E-mail robert.walpole@devon.gov.uk 
Received on Wednesday, 18 January 2006 10:01:46 UTC

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