- From: Ian Hickson <ian@hixie.ch>
- Date: Wed, 12 Mar 2003 13:56:27 -0800 (PST)
- To: Rijk van Geijtenbeek <rijk@iname.com>
- Cc: "www-style@w3.org" <www-style@w3.org>
On Wed, 12 Mar 2003, Rijk van Geijtenbeek wrote:
>>
>> In practice, in my six years of writing CSS tests, I cannot recall
>> receiving a single complaint from anyone who was blocked from using
>> CSS tests because of red/green colour blindness.
>
> I do have problems with 'maroon', which is used in some tests. I can
> hardly distinguish between maroon and black text color on a white
> background. Red text on a white background is better, but still not
> very easy. Distinguishing background colors, however, is no problem
> for me. And if a test says 'this text should be green text', I can see
> easily enough whether it is green or 'some other color, most likely
> black'.
Interesting!
The colour combinations I usually use are:
foreground background condition
white green pass
black lime pass
green white pass
red white fail
yellow maroon fail
navy white reading the text is required to understand
the test
Are any of the colours used on this page hard to distinguish?:
http://www.hixie.ch/tests/key.html
Note that as you observe, most of the tests check if you can see only
green, rather than if you can't see red.
See also: http://www.w3.org/Style/CSS/Test/guidelines.html#color
--
Ian Hickson )\._.,--....,'``. fL
"meow" /, _.. \ _\ ;`._ ,.
http://index.hixie.ch/ `._.-(,_..'--(,_..'`-.;.'
Received on Wednesday, 12 March 2003 16:55:47 UTC