At 06:48 PM 2003-12-17, you wrote:
hello
does any one know of an html renderer that will simulate visual disabilities. i.e. in red-green colour-blind mode, it would display both as brown
There are some available simulations.
http://www.google.com/search?q=daltonism+simulation
prefereably across a wide range of visual limitations
Aye, there's the rub. The consensus on the web content guidelines list (or the least common denominator of what different parties hold) is that there is no 'universal' color usage. One can check automagically for bad color use but not guarantee universal results with any specific color use.
<quote cite="http://www.w3.org/TR/WCAG20/";>
4. text content is not presented over a background image or color OR
the colors used for the text and background or background image
pass the following test:
+ no tests/algorithms are available at this timeNote:
A 20 db difference in sound level is roughly 4 times quieter (or louder).
Editorial Note: The working group is seeking an algorithm that measures contrast in a way that is accurate and testable enough that we could include it in the guidelines. One algorithm, which comes from the [77]Techniques For Accessibility Evaluation And Repair Tools document, is currently under consideration for inclusion in the techniques, but the group has not yet found something that is specific enough to be included at the guidelines level.
</quote>
[77] http://www.w3.org/TR/AERT
So continue to backstop color connotations with verbal and structural parallels.
this would be very usefull for accessable websites...
Somewhat useful, see above.
Al
TIA owen -- owen beresford [EMAIL PROTECTED]
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