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Colour Blindness & Screen Colours in Computer Applications

In a recent review of someone's web site on a hobby forum, one poster
mentioned the difficulties for folks with some forms of colour blindness
to see some of the text of the web site in question.

Are there any general guidelines for this sort of thing in designing
screens in computer applications?

At work, I'm in the middle of a very large reporting application which
will be my biggest effort there so far and at home, I've been designing
simply the largest database application I've ever done (as far as
screens/forms and amount of code goes), a hobby related application
(Yes, what a great life, coding at work, with breaks to do managerial
type things, then home, eat supper, kiss wife, feed parrots and then sit
down and code, I have danced near insanity a couple of times...)

For both of these, I'd like to "do it right" and would really appreciate
it it greatly if anyone could make some comments on this issue. Yes, I
have huge amounts done on these apps, but I'm not yet at deployment
stage, so pretty much any of the GUI can be changed.

Thanks very much in advance. This has been multi-posted to a couple of
database groups.
--
Tim http://www.ucs.mun.ca/~tmarshal/
^o<
/#) "Burp-beep, burp-beep, burp-beep?" - Quaker Jake
/^^ "Whatcha doin?" - Ditto "TIM-MAY!!" - Me
Nov 13 '05 #1
5 1850
"Tim Marshall" <TI****@PurplePandaChasers.Moertherium> wrote in message
news:dj**********@coranto.ucs.mun.ca...
In a recent review of someone's web site on a hobby forum, one poster
mentioned the difficulties for folks with some forms of colour blindness
to see some of the text of the web site in question.

Are there any general guidelines for this sort of thing in designing
screens in computer applications?


Section 508 - Subpart B -- Technical Standards § 1194.21 Software
applications and operating systems:
http://www.section508.gov/index.cfm?...ID=12#Software has a
few standards that address color.
--

~ Kathleen Anderson
Spider Web Woman Designs
web: http://www.spiderwebwoman.com/


Nov 13 '05 #2
MLH
A temporary solution might be to offer a black 'n white
version for the visually impaired. I know your long range
goal will be more flexible than that.

The reason I thought of it is because I've been on sites
that I couldn't read for the life of me. I'm not colorblind
AFAIK. On a number of occasions I would opt to swap
to B&W, I feel sure.

Dunno how difficult that is to implement.
Nov 13 '05 #3
On Sun, 23 Oct 2005 18:15:37 -0230, Tim Marshall wrote:
In a recent review of someone's web site on a hobby forum, one poster
mentioned the difficulties for folks with some forms of colour blindness
to see some of the text of the web site in question.

Are there any general guidelines for this sort of thing in designing
screens in computer applications?

At work, I'm in the middle of a very large reporting application which
will be my biggest effort there so far and at home, I've been designing
simply the largest database application I've ever done (as far as
screens/forms and amount of code goes), a hobby related application
(Yes, what a great life, coding at work, with breaks to do managerial
type things, then home, eat supper, kiss wife, feed parrots and then sit
down and code, I have danced near insanity a couple of times...)

For both of these, I'd like to "do it right" and would really appreciate
it it greatly if anyone could make some comments on this issue. Yes, I
have huge amounts done on these apps, but I'm not yet at deployment
stage, so pretty much any of the GUI can be changed.

Thanks very much in advance. This has been multi-posted to a couple of
database groups.


See:

http://www.q42.nl/demos/colorblindnesssimulator/
and
http://www.vischeck.com/

--
Fred
Please respond only to this newsgroup.
I do not reply to personal e-mail
Nov 13 '05 #4
MLH
Perfect reference!

This is slightly OT to the post, but why is it nowadays
people talk about RGB as if they were the primary colors.
The primary colors are RYB. Green is NOT primary color,
but a mixture of 2 primary colors: Y+B. So, why now are
people talking about RGB monitors - and RGB cone receptors
on the retina? Why is that?

If you take the blue component from green a bit at a time,
you end up with yellow. There's nothing you can take from
red to make it change color. Same goes for yellow and same
goes for blue.

Somehow, I missed all of this. So, will someone please set
me straight?
Nov 13 '05 #5
>why is it nowadays
people talk about RGB as if they were the primary colors


Because they *are* one set of primary colours:

http://en.wikipedia.org/wiki/Primary...tive_primaries

Nov 13 '05 #6

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