Re: ( LC-2908)

 Dear Makoto Ueki ,

The Web Content Accessibility Guidelines Working Group has reviewed the
comments you sent [1] on the Last Call Working Draft [2] of the
Understanding WCAG 2.0 published on 6 Mar 2014. Thank you for having taken
the time to review the document and to send us comments!

The Working Group's response to your comment is included below.

Please review it carefully and let us know by email at
public-comments-wcag20@w3.org if you agree with it or not before June 21,
2014. In case of disagreement, you are requested to provide a specific
solution for or a path to a consensus with the Working Group. If such a
consensus cannot be achieved, you will be given the opportunity to raise a
formal objection which will then be reviewed by the Director during the
transition of this document to the next stage in the W3C Recommendation
Track.

Thanks,

For the Web Content Accessibility Guidelines Working Group,
Michael Cooper
W3C Staff Contact

 1. http://www.w3.org/mid/<E1WMuGx-0003iw-Vk@shauna.w3.org>
 2. http://www.w3.org/TR/2014/NOTE-UNDERSTANDING-WCAG20-20140306/


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Your comment on Images of Text: Understanding Success Criterion 1.4.3:
> In "Intent of this Success Criterion" section, it reads "Corporate
> visual guidelines beyond logo and logotype are not included in the
> exception." in the 6th paragraph.
> 
> There can be a case where a designer want to use the same colors used on
> logo. In such case, a designer would not have a choice to select colors
> to be used.
> 
> If using the color used on logo (ex. #FF0000) would result in
> insufficient contrast ratio, would it fail SC 1.4.3?
> 
> Even if a designer understood SC 1.4.3, he/she will avoid using
> different colors than #FF0000 because it could undermine the visual
> identity and/or corporate identity of the organization.
> 
> Also there can be a case where brand design guideline defines a set of
> colors to be used for any visual design on web, ad, brochure, and so on
> and a designer has no choice. 
> 
> Proposed Change:
> Is "Corporate visual guidelines beyond logo and logotype are not
> included in the exception." also applied to such case?
> 
> If so, should we change the colors defined in the guidelines to meet SC
> 1.4.3? I think it's too strict.


Working Group Resolution (LC-2908):
The exception for logos or brand names is included because they are
recognizable as an image, and it is not necessary to read the included text
to recognize the brand. 

This is not true for text on the rest of the page. So if the designer uses
a color scheme that does not provide sufficient contrast, even if it is
part of the brand design guideline, the text would fail SC 1.4.3.

The contrast ratio in SC 1.4.3 was based on studies of the needs of low
vision users. It may be too strict for brand designs, but it is necessary
for legibility. Perhaps the design could provide alternative conforming
versions of the page via color themes.

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Received on Friday, 13 June 2014 18:55:42 UTC