Click here to Skip to main content
14,664,050 members

Survey Results

Are you colour blind?   [Edit]

Survey period: 24 Nov 2008 to 1 Dec 2008

Suggested by Joel, who feels there's a connection between IT and colour blindness. Do we buck the average 8% prevalence rate?

OptionVotes% 
Yes14010.11
No1,24589.89



 
GeneralRe: Colour blind or Colour-defficient ? Pin
Thomas Weller25-Nov-08 5:13
MemberThomas Weller25-Nov-08 5:13 
GeneralRe: Colour blind or Colour-defficient ? Pin
W Balboos, GHB25-Nov-08 6:06
mveW Balboos, GHB25-Nov-08 6:06 
GeneralRe: Colour blind or Colour-defficient ? Pin
chaiguy133728-Nov-08 8:05
Memberchaiguy133728-Nov-08 8:05 
GeneralRe: Colour blind or Colour-defficient ? Pin
peterchen24-Nov-08 21:29
Memberpeterchen24-Nov-08 21:29 
GeneralRe: Colour blind or Colour-defficient ? Pin
Brian Sherwood25-Nov-08 2:09
MemberBrian Sherwood25-Nov-08 2:09 
GeneralRe: Colour blind or Colour-defficient ? Pin
Guffa28-Nov-08 6:33
MemberGuffa28-Nov-08 6:33 
GeneralRe: Colour blind or Colour-defficient ? Pin
peterchen28-Nov-08 8:24
Memberpeterchen28-Nov-08 8:24 
GeneralRe: Colour blind or Colour-defficient ? Pin
Stuart Rubin25-Nov-08 4:14
MemberStuart Rubin25-Nov-08 4:14 
I am quite color-blind, about as bad as you can be without seeing just pure black and white. Without contextual clues (like the order of the stoplight, jeans are usually blue, etc.) I have a really hard time distinguishing these color combination:
Red-green (really common in men)
Blue-pink-purple
Yellow-green (a real problem with LEDs in electronics that I work on)
Brown-red
And any kind if "subtle" (mauve, salmon, taupe, etc.) or non-primary color is kind of lost to me.

This is caused by missing "cones" in my eyes, an inherited condition.
"Color blindness (color vision deficiency) is a condition in which certain colors cannot be distinguished, and is most commonly due to an inherited condition. Red/Green color blindness is by far the most common form, about 99%, and causes problems in distinguishing reds and greens."

I recommend taking one of these tests:
http://www.sometests.com/tests/SelfAssessment/TheColorBlindnessTest.html[^]

But, my point is, as software engineers, it's really important NOT to put such a huge percent of users needlessly in a difficult position. For example, never use color as the primary indicator of state; combine color with an icon or text. Use "color blind safe" pallets. There are examples of these on the Internet. If you go out of your way to have a color-blind-friendly product, chances are it will also be better for normal users.

PS. I've never had a problem seeing a traffic light, although I did once try on a pair of purple jeans in a store!
GeneralColor-Guarrd (ian). Pin
W Balboos, GHB24-Nov-08 1:29
mveW Balboos, GHB24-Nov-08 1:29 
GeneralRe: Color-Guarrd (ian). Pin
Gary Wheeler24-Nov-08 5:13
MemberGary Wheeler24-Nov-08 5:13 
GeneralCP and Colour Blindness PinPopular
Paul Watson24-Nov-08 0:48
sitebuilderPaul Watson24-Nov-08 0:48 
GeneralRe: CP and Colour Blindness Pin
El Bob-O24-Nov-08 3:54
MemberEl Bob-O24-Nov-08 3:54 
GeneralRe: CP and Colour Blindness Pin
Paul Watson24-Nov-08 4:02
sitebuilderPaul Watson24-Nov-08 4:02 
GeneralRe: CP and Colour Blindness Pin
chaiguy133728-Nov-08 8:17
Memberchaiguy133728-Nov-08 8:17 

General General    News News    Suggestion Suggestion    Question Question    Bug Bug    Answer Answer    Joke Joke    Praise Praise    Rant Rant    Admin Admin   

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.