Discussion
Too Much Color
cratermoon: What's My JND? 0.0089 Can you beat it? https://www.keithcirkel.co.uk/whats-my-jnd/?r=A30iKP__7_Hb #WhatsMyJND
xiconfjs: What's My JND? 0.0032 Can you beat it? https://www.keithcirkel.co.uk/whats-my-jnd/?r=AUEjKP___831 #WhatsMyJNDI need a better display for sure :)
rekabis: > 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.
snarkconjecture: Computer screens have three-dimensional color spaces. Tetrachromacy doesn't change that.
WalterGR: Discussed here: 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: 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).
xyzsparetimexyz: > But they do existDo they?
tgv: 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.
footydude: 0.0042 apparently 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.
Jensson: 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.
sophieraiin: Am I pretty?? (story)
