4 ms·

What's My JND? 0.0089 Can you beat it? https://www.keithcirkel.co.uk/whats-my-jnd/?r=A30iKP__7_Hb https://www.keithcirkel.co.uk/whats-my-jnd/?r=A30iKP__7_Hb #Wh

What's My JND? 0.0089 Can you beat it? https://www.keithcirkel.co.uk/whats-my-jnd/?r=A30iKP__7_Hb https://www.keithcirkel.co.uk/whats-my-jnd/?r=A30iKP__7_Hb #WhatsMyJND

cafebabbe 7mo ago
Only with chrome devtools :)
xiconfjs 7mo ago
What's My JND? 0.0032 Can you beat it? https://www.keithcirkel.co.uk/whats-my-jnd/?r=AUEjKP___831 https://www.keithcirkel.co.uk/whats-my-jnd/?r=AUEjKP___831 #WhatsMyJND I need a better display for sure :)
WalterGR 7mo ago
Discussed here: https://news.ycombinator.com/item?id=47321188 https://news.ycombinator.com/item?id=47321188 “Show HN: What's my JND? – a colour guessing game” 54 points | 8 days ago | 62 comments
tgv 7mo 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).
deleted 7mo ago
[deleted]
Jensson 7mo ago
That mostly depends on the quality of your screen.
- giraffe_lady 7mo ago
  It depends on something about your screen at least. I first did it on a low quality monitor and it made the line between the two obvious even if I couldn't tell the colors apart. The "hard mode" one was impossible on that screen however.
footydude 7mo ago
0.0042 apparently https://www.keithcirkel.co.uk/whats-my-jnd/?r=AaYkKP___-u- https://www.keithcirkel.co.uk/whats-my-jnd/?r=AaYkKP___-u- 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.
halflife 7mo ago
0.0021
bee_rider 7mo 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.
- majormajor 7mo ago
  Looking around if you have an LCD also helps compensate for colors shifting off-axis.
  - cyanydeez 7mo ago
    What youre doing is seeing changes limited to one of the R, G, B so instwad of judging integral xolors, your doing 3 different. The article explains how errors propagate, and those RGB pixels will all shift errors because of matetial science.
- abdullahkhalids 7mo ago
  I got 0.0039. Peripheral vision helps a lot. My eyes, at least, are very differently sensitive to different colors. It's really difficult to discriminate with bright and pink like colors. Easier with darker colors.
rXwubXUGAm 7mo 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."
- esperent 7mo ago
  0.0032 I'm on a Vivo X300 pro in a dim room, max brightness. Some of these looked impossible but then suddenly I'd see the line. https://www.keithcirkel.co.uk/whats-my-jnd/ https://www.keithcirkel.co.uk/whats-my-jnd/ #WhatsMyJND
  - drcongo 7mo ago
    Same score here on my MBP with an absolutely filthy screen. Reckon I could top the leaderboard if I cleaned it.
    - krsw 7mo ago
      Same score and setup. Overhead lights were messing with me a bit as well as the vignetting in the browser. I wanna get sub 0.0030 now
- rXwubXUGAm 7mo ago
  Replying to myself. I also tried this with both my Samsung S25+ phone and LG G5 TV and repeatedly scored in the 0.003-0.005 range on both so it doesn't seem like the display makes that much of a difference for me.
e1ghtSpace 7mo ago
0.0043, but to be honest, I could probably do better if I changed my monitor's settings. But I have it setup with low brightness for night time lights off viewing that won't wake me up.
foobarian 7mo ago
0.0021. I find it helps to bob your head around like when you are watching your food in the microwave
kalaksi 7mo ago
https://www.keithcirkel.co.uk/whats-my-jnd/?r=AG4mKP____6_ https://www.keithcirkel.co.uk/whats-my-jnd/?r=AG4mKP____6_ "This shouldn't be possible. I'm not saying that you cheated, but not not saying that." 0.0011. The quote seems a bit hyperbolic. There were maybe 2-3 that I didn't see and missed. 1-2 that I didn't hit perfectly but close enough. Display probably affects results (but didn't change any settings for this). I have a Dell IPS. I also moved my head around a bit, felt natural while trying to discern the colors. I do have a good vision (including color). Reminds me of the other color-game where you order some colored boxes to form a spectrum. Edit: just tried hard mode and got 0.0084. Missed maybe 3 that I couldn't see. Usually some magenta or blue colored. Grey and red / brown seem to be the easiest.
- tstrimple 7mo ago
  I got the same results you did. I think this is testing our monitors more so than our eyes. Given the forum we're on, I expect far better than average display devices being used which could help explain why basically everyone is doing far, far better than "average" according to the site.
kirillcool 7mo ago
0.00057 here - https://www.keithcirkel.co.uk/whats-my-jnd/?r=ADonKP_____7 https://www.keithcirkel.co.uk/whats-my-jnd/?r=ADonKP_____7 I do work with colors pretty much every day as a UI engineer
tracker1 7mo ago
I'm afraid to find out at this point... retinal damage combined with cataracts that I'm waiting to have a job with medical insurance to take care of... I used to be in the top 0.001% for color detection, now I know I'm very far from it. Especially towards dark and light brightness. In the early 00's, I used two pro grade NEC flat panel monitors... they weighed a lot... my desk at that time had a permanent bow in the middle. It was around 2008 or so when I'd moved them a few times in a year and a half and decided to switch to flat panels... It became very clear to me around that time, that most people really didn't care about color accuracy in designs. Couldn't tell you how often I'd get "it doesn't look like our printed logo" only to adjust their monitor settings and voiala. Even then. LCD flat panels are much easier to move around without killing your back. OLED is pretty amazing, but I've got to turn my brighness down a bit to make it tolerable... and I just about have to use dark mode. But there aren't many options in the 45" 3440x1440 display range, which is where I'm most comfortable today.
jaen 7mo ago
Was fun and kind of meditative locking in like that – I noticed that the anti-glare coating on my screen introduces a visibly larger Δ than the later stages of the game (kind of a dithered "cloud" noise), making it quite a challenge. 0.0021 oneshot.
Tempest1981 7mo ago
"At this rate, CIE will want your number" - the taunts are great! What's My JND? 0.0072 #WhatsMyJND
jcelerier 7mo ago
so basically this thread confirms that we're all getting worse color that we can actually see because I guess of some terrible lab measurement that got carried over like gospel? (0.0021 here, on a semi-cheap acer IPS screen) > At its core this formula gives you a single number: how far apart two colours look. 0.0 means identical, 100.0 means you're comparing black and white. 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. So anything under 2.0 is "close enough" and anything under 1.0 is "you're kidding yourself."

What's My JND? 0.0089 Can you beat it? https://www.keithcirkel.co.uk/whats-my-jnd/?r=A30iKP__7_Hb https://www.keithcirkel.co.uk/whats-my-jnd/?r=A30iKP__7_Hb #WhatsMyJND

cafebabbe 7mo ago

Only with chrome devtools :)

xiconfjs 7mo ago

What's My JND? 0.0032 Can you beat it? https://www.keithcirkel.co.uk/whats-my-jnd/?r=AUEjKP___831 https://www.keithcirkel.co.uk/whats-my-jnd/?r=AUEjKP___831 #WhatsMyJND I need a better display for sure :)

WalterGR 7mo ago

Discussed here: https://news.ycombinator.com/item?id=47321188 https://news.ycombinator.com/item?id=47321188 “Show HN: What's my JND? – a colour guessing game” 54 points | 8 days ago | 62 comments

tgv 7mo 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).

deleted 7mo ago

[deleted]

Jensson 7mo ago

That mostly depends on the quality of your screen.

giraffe_lady 7mo ago
It depends on something about your screen at least. I first did it on a low quality monitor and it made the line between the two obvious even if I couldn't tell the colors apart. The "hard mode" one was impossible on that screen however.

footydude 7mo ago

0.0042 apparently https://www.keithcirkel.co.uk/whats-my-jnd/?r=AaYkKP___-u- https://www.keithcirkel.co.uk/whats-my-jnd/?r=AaYkKP___-u- 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.

halflife 7mo ago

0.0021

bee_rider 7mo 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.

majormajor 7mo ago
Looking around if you have an LCD also helps compensate for colors shifting off-axis.
- cyanydeez 7mo ago
  What youre doing is seeing changes limited to one of the R, G, B so instwad of judging integral xolors, your doing 3 different. The article explains how errors propagate, and those RGB pixels will all shift errors because of matetial science.
abdullahkhalids 7mo ago
I got 0.0039. Peripheral vision helps a lot. My eyes, at least, are very differently sensitive to different colors. It's really difficult to discriminate with bright and pink like colors. Easier with darker colors.

rXwubXUGAm 7mo 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."

esperent 7mo ago
0.0032 I'm on a Vivo X300 pro in a dim room, max brightness. Some of these looked impossible but then suddenly I'd see the line. https://www.keithcirkel.co.uk/whats-my-jnd/ https://www.keithcirkel.co.uk/whats-my-jnd/ #WhatsMyJND
- drcongo 7mo ago
  Same score here on my MBP with an absolutely filthy screen. Reckon I could top the leaderboard if I cleaned it.
  - krsw 7mo ago
    Same score and setup. Overhead lights were messing with me a bit as well as the vignetting in the browser. I wanna get sub 0.0030 now
rXwubXUGAm 7mo ago
Replying to myself. I also tried this with both my Samsung S25+ phone and LG G5 TV and repeatedly scored in the 0.003-0.005 range on both so it doesn't seem like the display makes that much of a difference for me.

e1ghtSpace 7mo ago

0.0043, but to be honest, I could probably do better if I changed my monitor's settings. But I have it setup with low brightness for night time lights off viewing that won't wake me up.

foobarian 7mo ago

0.0021. I find it helps to bob your head around like when you are watching your food in the microwave

kalaksi 7mo ago

https://www.keithcirkel.co.uk/whats-my-jnd/?r=AG4mKP____6_ https://www.keithcirkel.co.uk/whats-my-jnd/?r=AG4mKP____6_ "This shouldn't be possible. I'm not saying that you cheated, but not not saying that." 0.0011. The quote seems a bit hyperbolic. There were maybe 2-3 that I didn't see and missed. 1-2 that I didn't hit perfectly but close enough. Display probably affects results (but didn't change any settings for this). I have a Dell IPS. I also moved my head around a bit, felt natural while trying to discern the colors. I do have a good vision (including color). Reminds me of the other color-game where you order some colored boxes to form a spectrum. Edit: just tried hard mode and got 0.0084. Missed maybe 3 that I couldn't see. Usually some magenta or blue colored. Grey and red / brown seem to be the easiest.

tstrimple 7mo ago
I got the same results you did. I think this is testing our monitors more so than our eyes. Given the forum we're on, I expect far better than average display devices being used which could help explain why basically everyone is doing far, far better than "average" according to the site.

kirillcool 7mo ago

0.00057 here - https://www.keithcirkel.co.uk/whats-my-jnd/?r=ADonKP_____7 https://www.keithcirkel.co.uk/whats-my-jnd/?r=ADonKP_____7 I do work with colors pretty much every day as a UI engineer

tracker1 7mo ago

I'm afraid to find out at this point... retinal damage combined with cataracts that I'm waiting to have a job with medical insurance to take care of... I used to be in the top 0.001% for color detection, now I know I'm very far from it. Especially towards dark and light brightness. In the early 00's, I used two pro grade NEC flat panel monitors... they weighed a lot... my desk at that time had a permanent bow in the middle. It was around 2008 or so when I'd moved them a few times in a year and a half and decided to switch to flat panels... It became very clear to me around that time, that most people really didn't care about color accuracy in designs. Couldn't tell you how often I'd get "it doesn't look like our printed logo" only to adjust their monitor settings and voiala. Even then. LCD flat panels are much easier to move around without killing your back. OLED is pretty amazing, but I've got to turn my brighness down a bit to make it tolerable... and I just about have to use dark mode. But there aren't many options in the 45" 3440x1440 display range, which is where I'm most comfortable today.

jaen 7mo ago

Was fun and kind of meditative locking in like that – I noticed that the anti-glare coating on my screen introduces a visibly larger Δ than the later stages of the game (kind of a dithered "cloud" noise), making it quite a challenge. 0.0021 oneshot.

Tempest1981 7mo ago

"At this rate, CIE will want your number" - the taunts are great! What's My JND? 0.0072 #WhatsMyJND

jcelerier 7mo ago

so basically this thread confirms that we're all getting worse color that we can actually see because I guess of some terrible lab measurement that got carried over like gospel? (0.0021 here, on a semi-cheap acer IPS screen) > At its core this formula gives you a single number: how far apart two colours look. 0.0 means identical, 100.0 means you're comparing black and white. 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. So anything under 2.0 is "close enough" and anything under 1.0 is "you're kidding yourself."