Color blindness
commandcenter.blogspot.com
Color blindness
1–10 of 165 posts
Re: Color blindness
#2Using capitalization to distinguish public/private was still a terrible idea.
Re: Color blindness
#3I'm yellow/blue blind in my dominant eye. This article rings true for me, although with different colour choices. For example, I didn't realize the halo thing was common, but I see it when looking at bright pink things.
The larger an object is, the more likely I can tell from that eye alone what colour it is. Mostly I err on the side of cyan - any colour near cyan (green to light blue) will invariably look like a single shade of cyan to that eye, so those colours are pretty much indistinguishable if overlapping like in the text examples. Eg: At night, the blue lights on buses and the green "go" light at intersections are the same colour to that eye - cyan. Until they get close (large) enough and then I can tell that they are different colours.
There is a huge difference when I do A/B comparison in either case, but when looking through both eyes simultaneously, I don't notice the deficiency at all. The brain decodes colour and fills in the blanks in unusual ways.
Re: Color blindness
#4This 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 difference between 2 lines on a graph that are not thick is difficult especially now that people have migrated to higher DPI displays.
Re: Color blindness
#5> It has to do with edge detection. The signals from receptors in the eye are used not only to detect color, but also to detect edges. In fact since color is detected largely by differences of spectral response from nearby receptors, the edges are important because that's where the strongest difference lies. The color of a region, especially a small one, is largely determined at the edges.
Aha! So that is why I have the hardest time with line charts even when I distinguish the colors in the legend just fine!
Re: Color blindness
#6Using capitalization to distinguish public/private was still a terrible idea.
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Re: Color blindness
#7I 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...
Re: Color blindness
#8I'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 drives and errored-out ports. Back in the 80s, I borrowed the eyes of cow-orkers (with the cow-orker still attached).
My wife was a PM on a project once, and asked what I thought of a bit of UI. The designers had replaced a set of small status icons with colored dots (green=ok, red=bad, puce=alerting, etc.). I explained that I could not distinguish them. They didn't believe me; it took that team about five months to come up with a UI that made sense (the same icons, but with colored, duh).
Re: Color blindness
#9Great article. Ummm... dumb question, but... stars are colored? (Color blind poster here).
Re: Color blindness
#10I've been wondering if syntax highlighting has a different amount of usefulness for colorblind people and whether it would be worth it to have a "font highlighting" system for different things. I already use bold for curly braces and italics for square braces since I use a small font. I'd like to try it. But vim chokes if the fonts are different sizes and sublime only allows one font at a time.