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Color blindness

commandcenter.blogspot.com

81–90 of 165 posts

Re: Color blindness

#82
post #4

This is such a detailed description of the issues caused by red/green color blindness. I've had some issues in the past specifically related to small red and green boxes. When you do some operations work you'll eventually run into a chart like this [0] and, during an outage, you'll undoubtedly not be able to notice a scattering of small red boxes in this type of visualization. Similar with line charts. Telling the di…

I am colorblind. Just to be sure, there are no non-green boxes in the chart you linked to, right?

All the boxes are green, apart from the key which is bright blue, bright yellow, dark yellow, orange, red, and maroon.

Re: Color blindness

#84
post #82

Earlier quoted context omitted.

I am colorblind. Just to be sure, there are no non-green boxes in the chart you linked to, right?

All the boxes are green, apart from the key which is bright blue, bright yellow, dark yellow, orange, red, and maroon.

Thanks, I got a bit worried :)

Re: Color blindness

#85
post #12
post #7

I didn't know he was color blind. I can't help but connect this to his famous disdain for syntax highlighting and colored text: https://groups.google.com/g/golang-nuts/c/hJHCAaiL0so/m/kG3B...

I usually ignore syntax highlighting. I can't see it well because it's tiny, and because the "designers" usually chose colors that are tough to distinguish, and sometimes very difficult to see at all. For instance, the default console colors in Ubuntu are TERRIBLE (maybe for everyone). The output of 'ls' uses blue letters on a black background for some type of file, and I literally cannot see those. Ditto for some er…

My vision is very good and I can confirm, the default Ubuntu terminal colors are horrible.

Re: Color blindness

#86
> In short, color detection when looking at small things, deciding what color an item is when it's so small that only the color difference signal at the edges can make the determination, is worse for color-blind people. Even though the colors are easy to distinguish for large objects, it's hard when they get small.

Like the author of the article I am partially red-green colorblind.

I found it particularly Illuminating to understand why the amount of colour makes a difference in the ability to distinguish between them. It's someting that I have repeatedly observed on my own, but I could never properly explain.

Re: Color blindness

#87
post #8

I'm r/g colorblind, and suddenly the indistinguishability of small colored objects makes sense now. Wow. Okay then. I hate multicolor LEDs with a passion. Those little amber or green dots look identical to me, even when you put them side by side. I use a phone app that uses the camera and shows me RGB values at a reticule. I've gone through rack and racks of equipment with that app, looking for things like dead drive…

To me this is interesting that green and red look the same with RG blindness. I'm YB blind in one eye, but I can easily tell a yellow thing isn't blue, and vice versa. It's the colours around blue and around yellow that I can't differentiate with that eye. (ie: red and orange are just red, green and blue are cyan, and dark blue or purple might as well be black. Royal purple looks like rich chocolate, so that's kinda entertaining.) So the deficient pigments seem to have very different results to colour perception.

Fun fact: I sometimes entertain myself by A/B testing between both eyes with my hand. It's especially interesting at Christmas when bright colours abound. Anyone who's ever seen me doing that probably thinks I'm a bit off, but that's okay. It will probably help with social distancing this year.

Re: Color blindness

#88
post #7

I didn't know he was color blind. I can't help but connect this to his famous disdain for syntax highlighting and colored text: https://groups.google.com/g/golang-nuts/c/hJHCAaiL0so/m/kG3B...

It may something to do with Plan 9. At least I stopped syntax highlighting after playing with it. It feels like unnecessary noise.

Re: Color blindness

#89
post #56

>> Maybe I can help you understand how that impairment—and it is an impairment, however mild... This is actually a slightly controversial claim. While r/g color-blind individuals do have difficulty viewing colors, they seem to have an easier time seeing through camouflage: A study on the ability to distinguish tones of khaki: https://www.discovermagazine.com/mind/in-combat-stick-with-t... There is strong anecdotal ev…

Well, there used to be jokes about stupid women seeing non existent color differences and making big deal about them. As in women being crazy and their husbands rational having to deal with that. Meanwhile, color blindness in overwhelmingly make issue.

You don't have to invoke color-blindness or tetrachromacy to explain that. Even normal trichromatic people will have differences of opinion about shades of blue or green. But every difference of opinion that might involve gender will always be exaggerated.

Re: Color blindness

#90
post #56

>> Maybe I can help you understand how that impairment—and it is an impairment, however mild... This is actually a slightly controversial claim. While r/g color-blind individuals do have difficulty viewing colors, they seem to have an easier time seeing through camouflage: A study on the ability to distinguish tones of khaki: https://www.discovermagazine.com/mind/in-combat-stick-with-t... There is strong anecdotal ev…

Well, there used to be jokes about stupid women seeing non existent color differences and making big deal about them. As in women being crazy and their husbands rational having to deal with that. Meanwhile, color blindness in overwhelmingly make issue.

Women have a small chance to be tetrachromats, so yeah they can see colors others have trouble with.
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