Christina WarrenHi. Please play this amazing JND color game my friend Keith made and see how good you/your displays are at differentiating between similar colors. https://www.keithcirkel.co.uk/whats-my-jnd/?r=filmgirl
Rachel Barker@film_girl I got 0.0043 overall. But the threshold of what delta-E I could see seemed to be different depending on the colours involved. Nailed some all the way down to 0.0032, while others I couldn't distinguish at 0.0080.
Whether that's a weirdness of my eyes, or my monitor being badly calibrated, or a bit of both, I couldn't say.
[edit to add: or it could be OKLAB not being perfectly perceptually uniform, I suppose. I would suspect it's not quite as uniform as DE2k, but would love to have data to back that up one way or the other]