- From: David Poehlman <poehlman1@home.com>
- Date: Fri, 29 Jun 2001 09:58:47 -0400
- To: "wai-ig list" <w3c-wai-ig@w3.org>
This comes from the advanced html list: Date: Thu, 28 Jun 2001 13:19:50 -0700 From: Elliott Manley < Elliott@MoltenGold.com> Subject: QUESTION: Are you colour-blind? I'm feeling quite pleased with myself :-) For ages I've wanted to make a web-based colour picker that updates itself in real time just like picking colours in a local application. With a few hours of hair-tugging, I've done it. The results are at http://www.TessPub.com/colours.html. You're welcome to pinch the code. Of course, a credit would be appreciated. It displays the results both as selected and as it would appear on a 256 colour monitor using "websafe" colours. The third thing it attempts to do, perhaps less than 100% successfully, is check foreground against background colours for contrast. Colour-blindness makes the web difficult to use for as many as 10% of your visitors. The idea is that it tests the difference in intensity between the two colours and pronounces it "GOOD" at greater than 33% and "BAD" at less than 33%. This was developed in collaboration with teenage visitor to one of my sites who was colour-blind. I realise there are several different kinds of colour-blindness and I have tried to allow for all kinds - but without really properly researching the issue I am not sure how well I've done. I'd really appreciate if colour-blind ADV-HTMLers would visit the site and give me feedback about it. I've tested it on the Mac in MSIE 4.0 and 5.5 and Opera 5.0 - where it works fine and in Netscape 6.0 where it doesn't work at all and Netscape 4.7 where not only does it not work, it looks terrible too. If anyone can tell me why Netscape doesn't like it and what to do about it, that'd be great too. Happy HTMLing! Elliott -- CTO and joint-CEO MoltenGold Ltd Dedicated to e-commerce http://www.MoltenGold.com ------------------------------ Hands-on Technolog(eye)s Touching The Internet http://members.home.com/poehlman1/ mailto:poehlman1@home.com voice: 301.949.7599
Received on Friday, 29 June 2001 09:58:06 UTC