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RE: Contrast issue

for

From: Steven Faulkner
Date: Apr 27, 2006 10:50PM



I would say it does not conform to WCAG 1.0 checkpoint 2.2 (at priority
3)- 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.

I tested it (with the CCA 1.1
http://www.wat-c.org/tools/CCA/1.1/index.html) using the W3C suggested
algorithms for colour visibility and both the darkest and lightest parts
of the gradient provide poor colour visibility.

John wrote:
> However, if the graphics are turned off in the browser, or the style
> sheet is turned off, the contrast is 100% efficient.

I think this is beyond the point, users should not need to turn their
style sheets or graphics off to compensate for poor contrast.


with regards

Steven Faulkner
Web Accessibility Consultant
vision australia - information & library service
454 Glenferrie Road
Kooyong Victoria 3144
Phone: (613) 9864 9281
Fax: (613) 9864 9210
Email: <EMAIL REMOVED>
www.accessibleinfo.org.au | www.wat-c.org

Download the Web Accessibility Toolbar
[http://www.visionaustralia.org.au/ais/toolbar/]

Vision Australia was formed through the merger of the Royal Blind
Society
NSW, the Royal Victorian Institute for the Blind, Vision Australia
Foundation and the National Information & Library Service.
ABN: 67 108 391 831 ACN: 108 391 831



> -----Original Message-----
> From: <EMAIL REMOVED>
> [mailto: <EMAIL REMOVED> ]On Behalf Of John S.
> Britsios
> Sent: Friday, 28 April 2006 2:12 PM
> To: <EMAIL REMOVED>
> Subject: [WebAIM] Contrast issue
>
>
> For our site's main navigation we have white text over a
> graphic with a
> gradient from darker to lighter orange.
> The contrast here is not very great. See here: http://www.webnauts.net
>
> However, if the graphics are turned off in the browser, or the style
> sheet is turned off, the contrast is 100% efficient.
>
> Is this an accessibility violation?
>
> Thanks,
>
> John
>
> --
>
> John S. Britsios
> Web Architect & Marketing Consultant
>
> Webnauts Net
> Koblenzer Str. 37A
> D-33613 Bielefeld
>
> Telephone: (+49) 0521 - 325 99 97
> Email: <EMAIL REMOVED> Web address: http://www.webnauts.net
>
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