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Re: Understanding SC 1.4.3 - application of contrast requirements to logos

From: Gregg Vanderheiden <gv@trace.wisc.edu>
Date: Mon, 13 Feb 2012 08:13:43 -0600
To: Detlev Fischer <fischer@dias.de>, GLWAI Guidelines WG org <w3c-wai-gl@w3.org>
Message-id: <8FCF3BF6-3C88-4E80-ACB4-4F9CE2EC5F6F@trace.wisc.edu>
HI Detlev,

Logos are not covered (they are an exception).   However, saying that our "corporate colors" are "Light blue on beige" so "all our pages are printed in those colors"  is not part of the exception.  That is a "corporate visual guideline" that "goes beyond a logo or logotype".  

PS - the way to ask an official question of the Working Group itself is via the public comments.  
This is an unofficial response from me as an individual explaining what the words in the guideline mean.   
Suggestions for changes in the understanding doc should go to the public comments list - which goes to the working group for handling.  (The WCAG itself is a standard so it is not editable.)   

Gregg
--------------------------------------------------------
Gregg Vanderheiden Ph.D.
Director Trace R&D Center
Professor Industrial & Systems Engineering
and Biomedical Engineering
University of Wisconsin-Madison

Co-Director, Raising the Floor - International
and the Global Public Inclusive Infrastructure Project
http://Raisingthefloor.org   ---   http://GPII.net








On Feb 13, 2012, at 4:52 AM, Detlev Fischer wrote:

> Dear WCAG WG,
> 
> "Contrast (Minimum): Understanding 1.4.3" has an exception for logos but the current text is not terribly clear, especially as it mixes the requirement for providing alternative text with contrast requirements:
> 
>  "Stylized text, such as in corporate logos, should be treated
>  in terms of its function on the page, which may or may not
>  warrant including the content in the text alternative.
>  Corporate visual guidelines beyond logo and logotype are not
>  included in the exception."
> 
> http://www.w3.org/TR/UNDERSTANDING-WCAG20/visual-audio-contrast-contrast.html
>  http://url.ie/e4hc
> 
> The last sentence quoted seems to imply that everything *not* beyond logo and logotype - i.e., the logo - actually qualifies for an exception from SC 1.4.3, but this message would be clearer if the text would just state:
> 
> "SC 1.4.3 does not apply to corporate logos. Logos are established as part of corporate or organizational histories. Their faithful reproduction is essential for the recognition of the entity represented."
> 
> ...or similar - *if* that is the actual position of the WCAG working group. I believe that it is, but I am not certain. Please comment.
> 
> One may add a 'nice to have' statement that new organisations or those overhauling their corporate identity should strive to meet SC 1.4.3 (or even SC 1.4.6?) in the desgin of their corporate logos.
> 
> Regards,
> Detlev
> 
> 
> 
Received on Monday, 13 February 2012 14:14:23 GMT

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