Re: Color blindness

Subject: Re: Color blindness
From: John Posada <jposada99 -at- gmail -dot- com>
To: List, Techwriter <techwr-l -at- lists -dot- techwr-l -dot- com>
Date: Wed, 30 Mar 2011 10:38:58 -0400

Thanks, Char


The issue I'm addressing is whether saying "...the blue Sign In box"
is going to be impacted by those with color issues.

Do they know, through experience, that blue may be different to them,
but still recognizable as differentiators, or will it only confuse

BTW...we have widgets on our web, some with a blue background and some
with yellow, and some with orange, hence the reason for mentioning
color. Just want to know if we are introducing an issue.

On Wed, Mar 30, 2011 at 10:15 AM, Char James-Tanny <charjtf -at- gmail -dot- com> wrote:
> Hi, John :-)
>> Does anyone know of any studies on the occurrence of color blindness
>> in the general public?
> Color blindness (more commonly known as "color deficiency") affects
> approximately 12% of the population, primarily males. The percentage
> varies according to the type of color deficiency (red-green,
> blue-yellow, complete absence of color).
>> I'm particularly interested in the effect on the color blue
> See
> One thing to be aware of...those affected by color deficiency can
> actually see colors, they just don't see the same colors those without
> the deficiency do. Children are taught their colors from a really
> young age (9 months or so, depending on the child and the parents),
> but can't be tested until they can talk. My husband is color deficient
> and can easily recognize many colors, but it depends on how much color
> there is (it's easier to identify the red in a red sweatshirt than a
> shirt made of red and blue checks) and what other colors are adjacent.
> Neons and pastels pose particular difficulties.
> Char James-Tanny ~ JTF Associates, Inc. ~

John Posada

Create and publish documentation through multiple channels with Doc-To-Help.
Choose your authoring formats and get any output you may need. Try
Doc-To-Help, now with MS SharePoint integration, free for 30-days.

You are currently subscribed to TECHWR-L as archive -at- web -dot- techwr-l -dot- com -dot-

To unsubscribe send a blank email to
techwr-l-unsubscribe -at- lists -dot- techwr-l -dot- com
or visit

To subscribe, send a blank email to techwr-l-join -at- lists -dot- techwr-l -dot- com

Send administrative questions to admin -at- techwr-l -dot- com -dot- Visit for more resources and info.

Please move off-topic discussions to the Chat list, at:


Color blindness: From: John Posada
Re: Color blindness: From: Char James-Tanny

Previous by Author: Color blindness
Next by Author: Does anyone put a link on their resume to their public LinkedIn profile?
Previous by Thread: Re: Color blindness
Next by Thread: RE: Color blindness

What this post helpful? Share it with friends and colleagues:

Sponsored Ads