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Re: Use dark text on light background

From: Shadi Abou-Zahra <shadi@w3.org>
Date: Thu, 12 Feb 2009 22:29:50 +0100
Message-ID: <499494CE.5010904@w3.org>
To: Michael Stenitzer <stenitzer@wienfluss.net>
CC: public-wai-eo-badtf@w3.org

Hi Michael,

Why "no" and why to both? Here are some thoughts for "yes" but please 
feel free to put counter arguments:

- Use dark text on light background
  -- it is a WAI-AGE requirement
  -- it is backed by WCAG 2.0
  -- it seems like a good practice for usability
  -- we can easily do it on the tickets page

- Ensure links change colour after visit
  -- it is a WAI-AGE requirement
  -- it seems like a good practice for usability


PS: "ensure links change color after visit" is one of the requirements 
that WAI-AGE plans to submit to WCAG WG as possible future techniques.


Thanks,
   Shadi


Michael Stenitzer wrote:
> two votes for "no" although i usualy like the second one (changing color 
> for visited links) but i think it is more of an usability issue.
> 
> /michael
> 
> Shadi Abou-Zahra wrote:
>>
>> Dear group,
>>
>> In response to my action items [1], I looked for WCAG 2.0 Techniques 
>> that match the following user requirements identified by the WAI-AGE 
>> Literature Review:
>>  - Use dark text on light background
>>  - Ensure links change colour after visit
>>
>> For the first user requirement I found the following Advisory 
>> Techniques that are *being planned* (they are currently listed as 
>> "future links"):
>>
>> ## Under SC 1.4.3 and SC 1.4.6
>> - Using colors that are composed predominantly of mid spectral 
>> components for the light and spectral extremes (blue and red 
>> wavelengths) for the dark
>> - Using a light pastel background rather than a white background 
>> behind black text to create sufficient but not extreme contrast
>>
>> I did not find relevant Techniques for the second requirement.
>>
>> Question for the group:
>> - Should we implement the requirement "Use dark text on light 
>> background" on the Demo?
>> - If yes, then where? Some suggestions include the "Terms and 
>> Conditions" or the "Buy tickets ..." areas on the tickets page.
>>
>>
>> Regards,
>>   Shadi
>> [1] <http://www.w3.org/2009/02/11-badtf-minutes#ActionSummary>
>>
>>
> 

-- 
Shadi Abou-Zahra - http://www.w3.org/People/shadi/ |
   WAI International Program Office Activity Lead   |
  W3C Evaluation & Repair Tools Working Group Chair |
Received on Thursday, 12 February 2009 21:30:28 GMT

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