Too Much Color

(keithcirkel.co.uk)

33 points by maguay2 days ago

4 comments

rekabis2 days ago
> The magic number to remember is the "Just Noticeable Difference" (JND). For dE00, JND is around 2.0. Below that, people struggle to tell two colours apart. Below 1.0, basically no one can.Except for a tetrachromat. Specifically, a strong tetrachromat that has both four colour channels in the brain and a different frequency on the fourth cone.Who are, admittedly, hella rare. Apparently there are less than a few dozen confirmed world-wide.But they do exist.
- lucideer1 hour ago
 > admittedly, hella rare. Apparently there are less than a few dozen confirmed world-wideWhat's actually hella rare is tests for tetrachromacy. Given the total number of people who have ever taken such a test, I think it's reasonable to assume there are significantly more than a few dozen actual tetrachromats out there.
- snarkconjecture2 hours ago
 Computer screens have three-dimensional color spaces. Tetrachromacy doesn't change that.
 - tgv1 hour ago
 Is that so? Our color perception is weird. It's one dimension split in three overlapping sectors. Adding a fourth sector may add information that makes it easier to distinguish colors.
 - Jensson1 hour ago
 We do have four sectors, 3 color perception and then the brightness perception that is used in the dark. In mid darkness you get a mix of all of those, although the fourth is not really perceived as a color so it can be a bit hard to use.
 - Zardoz8458 minutes ago
 And the eye cones not are sharp filter, they overlap ranges with mid-low sensibility. That must be nought to someone with Tetrachromacy to percibe something different on a RGB screen.> More precisely, she had an additional cone type L′, intermediate between M and L in its responsivity, and showed 3 dimensional (M, L′, and L components) color discrimination for wavelengths 546–670 nm (to which the fourth type, S, is insensitive). Source: Wikipedia
- xyzsparetimexyz1 hour ago
 > But they do existDo they?
 - IAmBroom44 minutes ago
 Do you doubt genetic and microbiological science?
cratermoon2 days ago
What's My JND? 0.0089 Can you beat it? <a href="https://www.keithcirkel.co.uk/whats-my-jnd/?r=A30iKP__7_Hb" rel="nofollow">https://www.keithcirkel.co.uk/whats-my-jnd/?r=A30iKP__7_Hb</a> #WhatsMyJND
- rXwubXUGAm11 minutes ago
 I got a 0.0035. I'm on a Dell U2724D monitor which is supposed to have decent color accuracy and I cranked up the brightness and contrast to a maximum so I'm sure that helped a somewhat. I also noticed squinting and closing my eyes for a bit sometimes helped when I felt stuck."Genuinely remarkable. You sailed past the theoretical human limit like it owed you money. I'd accuse you of cheating but I don't actually know how you'd cheat at this."
- bee_rider12 minutes ago
 .0037. IIRC it is possible to get a better score by looking around the screen, your peripheral vision might be somehow more sensitive.I can see what they mean about .02 though. If I weren’t specifically looking for difference that’s where the colors become less noticeable.
- footydude1 hour ago
 0.0042 apparently <a href="https://www.keithcirkel.co.uk/whats-my-jnd/?r=AaYkKP___-u-" rel="nofollow">https://www.keithcirkel.co.uk/whats-my-jnd/?r=AaYkKP___-u-</a>There's was 2 or 3 where i had no idea, guessed and was a way off.There's was 1 where i did a hail Mary and got it. It was interesting how some even towards the end were really obvious and others were really subtle - I'd say I did better with purple tones and worst with the blue / greys.
- xiconfjs2 hours ago
 What's My JND? 0.0032 Can you beat it? <a href="https://www.keithcirkel.co.uk/whats-my-jnd/?r=AUEjKP___831" rel="nofollow">https://www.keithcirkel.co.uk/whats-my-jnd/?r=AUEjKP___831</a> #WhatsMyJNDI need a better display for sure :)
- WalterGR2 hours ago
 Discussed here: <a href="https://news.ycombinator.com/item?id=47321188">https://news.ycombinator.com/item?id=47321188</a>“Show HN: What's my JND? – a colour guessing game” 54 points | 8 days ago | 62 comments
- tgv1 hour ago
 I'm color blind, and not even a little bit, but I scored 0.0084. I've noticed before that my perception of contrast is slightly better (than that of the people I ever compared it with; admitteldly, that's only a handful, but they weren't colorblind).
- Jensson1 hour ago
 That mostly depends on the quality of your screen.
- halflife50 minutes ago
 0.0021
- cafebabbe2 hours ago
 Only with chrome devtools :)
jacknews47 minutes ago
lol, the website reminds me of tropes like the professional cleaner whose house is messy, the chef who eats instant noodles at home, or the haut couture fashion designer who only wears jeans and tees. The colour expert whose website is monochrome.
- olejorgenb22 minutes ago
  My impression is that they are a compression expert, not a color expert. Make sense they chose uniform flat colors :D
sophieraiin1 hour ago
Am I pretty?? (story)