https://en.wikipedia.org/wiki/Impossible_color#Chimerical_co...
In ~2016 on the chan someone posted a completely unhinged post about this "bleen" "grue" color that nobody could see. it's probably lost to the ages now, but I remember it.
Then I realized that wasn’t an optical illusion and instead just part of the setup…
i still kinda do, because it just happen at random when i am outside. sometimes, usually in bright morning light, sunny morning. no i dont look at the sun, yes mostly its visible looking at the blue of the sky.
last time i had it while in 1 on 1 with my manager. it took a lot of struggle not to try and rub my eye or tell her i was seeing this weird rainbow snake floating around.
overloaded cones, hopefully thats not some indication of something bad but just 'tired eyes'.
Sounds like it might have been a 'floater':
https://en.wikipedia.org/wiki/Floater
(I've had one myself for my whole life, a 'crystal worm'. I usually don't notice it, fortunately, but once it a while it will noticeably drift into my field of view while looking at a bright, blank field - like the blue sky or a monochrome computer screen.)
Note that those are possibly photosensitive epilepsy risks if you turn them up to 60/100.
I suspect many animals experience color quite differently, including seeing infrared/ultraviolet, etc.
https://www.reddit.com/r/FUCKYOUINPARTICULAR/comments/1dxlt6...
https://kagi.com/images?q=e5+h5+shinkansen&r=au&sh=fWcD0dVpC...
:)
Hm, so is it correct to also call it ultragreen? In the same way that ultraviolet is the same effect but for short waves?
In this regard, it can’t be that novel of a discovery.
This would be "sideways green" perhaps :)
I presume "loo" and "ool" are in-gamut? What hex values?
it's easy to see: RGB somehow contains brightness information but that's not part of color, so one dimension less
So you are saying that 3d space has a 3d suspace of visible light?
> It’s not that people in the past couldn’t see blue. Indeed, there were several words which could refer to things we would call blue today, but these words could also describe things we’d assign to other colours too, especially grey and green.
I didn't know there was funding for this
I wonder if someone could sell pieces of paper which have this color?
What's going on here is different. The researchers managed to identify individual cones in the retinas of human subjects. They then shot tiny pulses of light at ONLY the M (green-sensitive) cones. This avoided stimulating the other cones, and subjects saw a color they could not have seen otherwise.
The issue here is that the S, M, and L cones have overlapping sensitivity curves: normally if you shine green light on the retina, all three cones will respond, and your brain will say "green". But here they are stimulating only one cone, not all 3.
This color does not give a fuck, I use it in my main CTA. People click it like 4000% more
The color in the Wikipedia article is just a rough approximation.
For example, yellow has a wavelength of ~580nm. When that wavelength enters our eyes it activates both the M and the L cone cells, with the L slightly more. That differential activation between the two types of cells gives us the experience of yellow.
Blue actually activates all our cone cells, with S the most and a tiny bit of M and L.
What this technology does is selectively activate only the M cone cells.
There is no possible wavelength that activates only the M cone cells, because the combined activation spectrum of the S and L cone cells overlaps the entirely of the M spectrum. There's nothing natural that can enter our eyes and activate M without also activating L and/or S.
Therefore no one can ever have had the experience of having only their M cone cells activated with anything in the natural world. It can only have been done with this technology.
As for the experience of seeing olo, the qualia, that's almost arbitrary. The authors originally thought it was going to be the "greenest green" but it wasn't really. It wasn't possible to predict what the qualia would be, because the brain has never had that experience. For all they knew they might not have seen anything, because the brain could have just thrown up it's hands at this nonsense signal. Instead they happened to experience this teal-like color. But that wasn't a priori obvious. It's just the brain struggling to apply an experience to nonsense.
It is similar to tiring out the S and L cone cells and then looking away as you say elsewhere -- the authors mention that in the long-form article in The New Yorker -- but this is much clearer and more saturated.
So, the cover of R.E.M.'s 1988 record titled Green, which is actually orange. You're supposed to stare at it, then close your eyes, and you see the album cover as it's intended to be viewed.
(Context: negative afterimage, https://en.wikipedia.org/wiki/Afterimage)
Basically equivalent to
source: trust me bro
Only one person on Earth has officially seen the color of my coffee mug. Send me Venmo for $10, and I'll officiate your viewing of the attached JPG....