TIL my ΔEₒₖ JND is 0.0036 (and what that actually means). Apparently this is quite good. Can you beat it? https://www.keithcirkel.co.uk/whats-my-jnd/?r=AWwgKP__v8vD
What's My JND?

Find your Just Noticeable Difference in colour perception. How small a colour difference can you actually see?