Colour Blindness

I was just reminded by bd4d about the importance of colour blindness checking on your websites. Creating content which is visible to colour blind people seems to come way down on the list of things that need to be made accessible when designing a website - after all, it just isn’t as sexy as getting things to work for all those blind kids, is it? I have a little bit of experience with colourblindness, however, so the subject is somewhat close to my heart. You see, my brother has very severe red-green colour blindness (aparently at the hospital they kept sending for extra doctors because they had never seen it as bad as he has it), and finds that a good deal of websites are hard, or just plain impossible, to use because of poor use of colour.

Even if you’re not colour blind yourself, that’s no reason to not design with colour blind people in mind as one of your potential users. Vischeck is a good tool for checking pages or images against three different types of colour blindness, whilst the Colorblind Web Page Filter does the same job with the addition of several more variables. This extra load of variables result in a much more haphazard user interface, but if you need the extra complexity then it is a good tool to use. As with all tools of this type neither are perfect, but both should point you in the right direction for improving your websites.

If you enjoyed reading this and would like other people to read it as well, please add it to, digg or furl.

If you really enjoyed what you just read, why not buy yourself something from Amazon? You get something nice for yourself, and I get a little bit of commission to pay for servers and the like. Everyone's a winner!

comments (2) | write a comment | permalink | View blog reactions


TrackBack URL for this entry:


  1. by greatred on July 24, 2005 02:50 AM

    It’s a useful looking tool, indeed. A quick check of my own website seems to show it not looking unusable, even if slightly less pretty. So that’s good. :)

  2. by Neil Crosby [TypeKey Profile Page] on July 26, 2005 12:08 AM

    Excellent. Hope the trip back to the uk is going well for you!

Write a comment

(If you haven't left a comment here before, you may need to be approved by the site owner before your comment will appear. Until then, it won't appear on the entry. Thanks for waiting.)

other relevant pages

about wwm is a resource for web developers created by Neil Crosby, a web developer who lives and works in London, England. More about the site.

Neil Crosby now blogs at The Code Train and also runs, The Ten Word Review and Everything is Rubbish.