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Color blindness

commandcenter.blogspot.com

21–30 of 165 posts

Re: Color blindness

#21
post #11
post #9

Great article. Ummm... dumb question, but... stars are colored? (Color blind poster here).

Yup. > "The color of a star, as determined by the most intense frequency of the visible light, depends on the temperature of the star's outer layers, including its photosphere." https://en.wikipedia.org/wiki/Star#Radiation

The poster's question should be interpreted as: can the color of the stars be distinguished with the naked eye?

Re: Color blindness

#22
post #14
post #9

Great article. Ummm... dumb question, but... stars are colored? (Color blind poster here).

Is it obvious to everyone else? Do colored dots stand out in the sky? Or is it a subtle thing?

To me (not colour blind), they are not really coloured. Some are slightly more yellow or blue, but that's about it.

They do, however, twinkle: https://en.wikipedia.org/wiki/Twinkling

And while twinkling, I catch glimpses of red, yellow, blue or others. Of course, this is very subjective and that wikipedia page doesn't mention colour changing at all.

Re: Color blindness

#23
post #9

Great article. Ummm... dumb question, but... stars are colored? (Color blind poster here).

I am not color blind and I've never noticed star colors. They just look white or yellow to me. It must be very subtle.

It helps to be way out from the city, and some stars stand out better than others as having a color other than yellow/white.

Antares, for example, is one I can consistently see as red.

Re: Color blindness

#24
post #21
post #11

Earlier quoted context omitted.

Yup. > "The color of a star, as determined by the most intense frequency of the visible light, depends on the temperature of the star's outer layers, including its photosphere." https://en.wikipedia.org/wiki/Star#Radiation

The poster's question should be interpreted as: can the color of the stars be distinguished with the naked eye?

Again, yes. Particularly in clusters, I can detect differences in the colors of stars.

Re: Color blindness

#25
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...

As a color blind engineer, I love syntax highlighting, but mostly for the "pop" and "fade" contrast effects rather than associating specific colors with semantic values.

Re: Color blindness

#26

Nice article. Small correction, humans are not old world monkeys (or any kind of monkey). We are apes.

Interesting, so English language has two words for them. e.g. in Polish both are "małpa" (and usually translated to monkey), similar to turtle and tortoise, for us it is a single world "żółw" (and usually translated to turtle).

Re: Color blindness

#27
I've got mild red-green colorblindness (less severe than the author's); this article is great, and goes into much more detail than I knew beforehand. If I could add some suggestions to the author's at the end:

* First, if you have the option of using one or the other, do so. Like, you can use red, blue, yellow, purple, and black for lines on a graph before you even need to find an additional color like green.

* Second, highly saturated ("computer" red/green) are easy to distinguish (for me, anyway, and it sounds like the author as well). So they're preferable to less saturated versions of red and green, if you need to use both.

For me, the most difficult reds and greens to distinguish are in the pastel range.

* Additionally, if you're designing UI for a program (game or whatever) with colorblindness options, PLEASE do not label the options with the medical names only ("deuteranopia", "protanopia", "tritanopia"). I don't know what the latin word for the medical condition of red-green colorblind is, I just know I have the relatively common kind of red-green colorblindness. I'd guess most people who aren't doctors are in a similar boat. Labels that include the color-distinction difficulty and relative commonality would be most useful to me, e.g., "red-green (MOST COMMON ­— deuteranopia)", "red-green (LESS COMMON — protanopia)", and "blue-yellow (EXTREMELY RARE — tritanopia)".

Re: Color blindness

#28
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...

Anecdotal, but I have mild color-blindness and love syntax highlighting.

Re: Color blindness

#29
post #9

Great article. Ummm... dumb question, but... stars are colored? (Color blind poster here).

Stars mostly look white to me (or very light yellow or blue) and I‘m fairly confident I have standard color vision — but I’m nearsighted and have mild strabismus, so they look pretty bad unless I’m using a telescope. :(
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