(I usually use this observation from the other side, as a reductio ad absurdum about coding guidelines that could as well be implemented as editor settings.)
The funny thing is we were supposed to be making Ada compliant websites. But I guess it didn't prevent using the website, just an aesthetic choice. Or "can't see one specific shade of green" isn't a disability.
For what it's worth I also have never been entirely convinced "navy blue" is different from "black" and that the existence of navy blue as a distinct color isn't some elaborate joke being played on me. Someone gave me a pack of dress socks of all different shades of grey, black, and navy blue as a Christmas gift, and they meant well but do not know the apprehension they caused.
And that light green just looks tan to me (kind of like the background here on HN), or like a normal monitor with the blue light blocking turned on.