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We are Colorblind

wearecolorblind.com

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Re: We are Colorblind

#31

Post by Dylan16807 »

mrcharles wrote: post #28
Xcelerate wrote: post #10

Diclaimer: I have full-color vision, but with color blindness there are (roughly) two dimensions of color, whereas most people have three (and a black and white photograph has one). What this means is that with 1D color, you can sort all of the colors you see into a line -- dark to light. With 2D color, you can sort all of the colors you see on a flat plane. With 3D color, you require stacking colors. Now, there's pl…

That's interesting about tetrachromats. I knew a lady when I was a kid who claimed she couldn't 'see' an image on TV, that it was all just garbage to her. I'd always just assumed she was either crazy or making some weird kind of statement. Maybe not!

That would have to be something else. The effect of an extra cone on watching TV should be far less severe than a normal eye's view of black and white.

Re: We are Colorblind

#32

Post by LinaLauneBaer »

untog wrote: post #26
jwhite wrote: post #23

Earlier quoted context omitted.

There's also the fact that the ability to discern two colours depends on the two shades involved, and the shades that nature presents are probably different to the ones chosen by Faber-Castell. Also, when I was a kid I could tell the purple pencil from the blue if I held them together, but had trouble if I had just one on its own. (Still true today but I don't come across colour pencils so often...)

Actually I am exactly the same. Inspired by all of this, I took an online test: http://www.opticien-lentilles.com/daltonien_beta/new_test_da... Which seems to suggest that I am green-blind, but not red. With 1/7 wickline, but I have no idea what that means (suspect it has been lost in translation somewhere)

This test seems to be flawed. I just did this test with four people and we all agreed that their correct solutions are sometimes wrong. Is an expert here?

Re: We are Colorblind

#33

Post by kawaguchi »

While it only rarely comes up, my specific form of colorblindness (protanomaly) results in red highlighted text looking like normal black text. This has made using some websites exceedingly difficult/impossible for me to use (www.readthekanji.com comes to mind). According to wikipedia, only about 1% of the male population has this form of colorblindness though, so you aren't looking at truly significant numbers affected.

Re: We are Colorblind

#34

Post by LinaLauneBaer »

untog wrote: post #26
jwhite wrote: post #23

Earlier quoted context omitted.

There's also the fact that the ability to discern two colours depends on the two shades involved, and the shades that nature presents are probably different to the ones chosen by Faber-Castell. Also, when I was a kid I could tell the purple pencil from the blue if I held them together, but had trouble if I had just one on its own. (Still true today but I don't come across colour pencils so often...)

Actually I am exactly the same. Inspired by all of this, I took an online test: http://www.opticien-lentilles.com/daltonien_beta/new_test_da... Which seems to suggest that I am green-blind, but not red. With 1/7 wickline, but I have no idea what that means (suspect it has been lost in translation somewhere)

Or am I color blind?

http://db.tt/0zOpPIV2

Re: We are Colorblind

#36

Post by cyber »

hnha wrote: post #17
benrequena wrote: post #12

The colorblind simulator only works if you have normal vision. Is there a color corrector simulator for certain types of colorblindness? e.g. Show colorblind people what the colors look like to the normal viewer.

Haven't read up on it but maybe http://dankaminsky.com/2010/12/15/dankam/ does that.

Speaking with Dan, he's indicated that a research organization is making heavy use of his app. Evidently they are close to trials on gene therapy.

Re: We are Colorblind

#37

Post by thaumaturgy »

Yay for this site! I'm somewhat seriously colorblind, and have a page on my personal site with a bunch of examples that do a good job of illustrating the difference between what I see and what other people see: http://www.robsheldon.com/colorblind/

One of the examples is a color-coded map from somewhere which would be nearly useless to me.

Colorblindness-as-a-usability-problem does happen occasionally for me (e.g., http://news.ycombinator.com/item?id=3489255, http://news.ycombinator.com/item?id=2765215, http://news.ycombinator.com/item?id=1098124). Fortunately, the current trend for color in web design seems to be pastels, which I don't have as much trouble with.

Re: We are Colorblind

#38

Post by untog »

LinaLauneBaer wrote: post #34
untog wrote: post #26

Earlier quoted context omitted.

Actually I am exactly the same. Inspired by all of this, I took an online test: http://www.opticien-lentilles.com/daltonien_beta/new_test_da... Which seems to suggest that I am green-blind, but not red. With 1/7 wickline, but I have no idea what that means (suspect it has been lost in translation somewhere)

Or am I color blind? http://db.tt/0zOpPIV2

Hm, something appears to have gone very wrong there, yes. That image is not supposed to be paired with those answers.
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