Live data from Hacker News

Why we're blind to the color blue

calebkruse.com

81–90 of 218 posts

Re: Why we're blind to the color blue

#81

I don't believe the blurred images at the end have anything to do with eye focus, as the author suggests. After all, chromatic aberration is blurring of only a very, very small amount. The demonstrated seemingly negligible perceptual effect of blurring blue to a huge degree in a multicolor image doesn't seem to have anything to do with that, but rather the fact that we perceive primary blue as a much darker color tha…

I’d love to see the same comparison across a range of images.

Re: Why we're blind to the color blue

#83
post #36

There's an optometry place in my neighborhood with a back-lit sign with big, blue block letters. And every time I walk by at night I note how fuzzy it looks. I'm convinced this is an intentional troll. This optometrist knowingly picked a sign to make people momentarily question their vision.

This happens every wintertime for me as blue string lights are put up, and they always appear “fuzzy” compared to other colors.

Do you also find that this effect is way more pronounced in recent years with LED string lights than colored lights many years ago? I think b/c LEDs are more monochromatic, I will notice a difference between my parent's extremely old string lights and newer sets.

Re: Why we're blind to the color blue

#84

I don't believe the blurred images at the end have anything to do with eye focus, as the author suggests. After all, chromatic aberration is blurring of only a very, very small amount. The demonstrated seemingly negligible perceptual effect of blurring blue to a huge degree in a multicolor image doesn't seem to have anything to do with that, but rather the fact that we perceive primary blue as a much darker color tha…

The author is correct. Lighting designers sometimes use the effect deliberately to create blue spotlights that viewers can't focus on.

That description doesn't do it justice - you have to experience it to appreciate it. It's very striking and slightly surreal.

Re: Why we're blind to the color blue

#86

Earlier quoted context omitted.

This happens every wintertime for me as blue string lights are put up, and they always appear “fuzzy” compared to other colors.

I got dry eyes some time ago. Dryness gone but now I see starburst at night in headlights, neon signs and stars. Being unable to see stars as flickering dots anymore hurts me the most. Neon signs in particular if blue are totally whacky and unreadable until I go too close. I went to optometrist recently and they didn't understand why blue in particular and recommended a color blindness test which I obviously passed.…

Wait, stars are flickering dots for most people?

Re: Why we're blind to the color blue

#87
Could this be a factor in why we didn’t evolve to see a wider range of wavelengths?

Is the visual spectrum just barely within the range that our brains can correct for the diverging focal lengths without needing additional lenses or modifications to the eye?

Re: Why we're blind to the color blue

#88
post #56

Earlier quoted context omitted.

20/10 vision in one eye, 20/13 in another, no astigmatism. Blue LEDs in clocks when viewed at night look completely fucked up.

I’ve never met anyone without some astigmatism; especially, people with other vision impairment. Astigmatism is the number one cause of night blindness which is what you described.

> In Europe and Asia, astigmatism affects between 30 and 60% of adults.

https://en.wikipedia.org/wiki/Astigmatism

Re: Why we're blind to the color blue

#89
post #50

One of my favourite series in art is Yves Klein's blue work. For anyone unfamiliar, he found a blue that he considered the bluest possible blue [1], and went on a journey painting everything in that blue. I loved that he did this, and then eventually managed to get to an exhibition of his work at the Tate Modern and was absolutely blown away by it - it really needs to be seen in the flesh to appreciate it. There's so…

As someone who hasn't seen it in the flesh yet, and doesn't "get" modern art unless someone explicitly spells it out for me, could you elaborate more on why it's so spectacular? For example, Blue Monochrome [1] seems to my uneducated eye to be just a layer of pure blue that every wall painter recreates every time they paint a wall blue. Why is the Blue Monochrome piece more than just a wall painted blue? [1] https://…

Klein blue is outside the color gamut that can be represented on normal monitors, so it's physically impossible to get the full impact of it through a picture. It just looks .. deeper.

There are a few flowers that have this property; fuscias, and others with strong UV fluorescence.

Re: Why we're blind to the color blue

#90

Earlier quoted context omitted.

As someone who hasn't seen it in the flesh yet, and doesn't "get" modern art unless someone explicitly spells it out for me, could you elaborate more on why it's so spectacular? For example, Blue Monochrome [1] seems to my uneducated eye to be just a layer of pure blue that every wall painter recreates every time they paint a wall blue. Why is the Blue Monochrome piece more than just a wall painted blue? [1] https://…

Don't know about Yves Klein specifically but remember seeing this video from Vox: "Why these all-white paintings are in museums and mine aren't" [1] [1] https://www.youtube.com/watch?v=9aGRHOpMRUg

I like to wander around art museums, and on one visit, I shared a gallery with what seemed like a private tour group.

One woman was conducting the tour for three people, when they stopped at one of these all-white paintings.

She was describing the potential meaning behind the work, and noted that sometimes the artist expresses textures, or covers some background work.

It's hard to describe, but I felt this sort of absurdist joy when I watched all four of them lean in very closely for half a minute, only to discover absolutely nothing unique about the work in its texture or color.

Maybe sometimes art isn't made for the observer, but the observer's observer.

Post reply on HN