Hi. 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
What's My JND?

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

@film_girl 0.0040, lenovo t460p running firefox under linux(i use arch btw) with it's second replacement screen, only one of which was my fault.

_also sorry lol had to throw the btw joke in_