The blue in some light point is spot on. I used to think it was always gray, but seeing that shift changed my view. Now I pay more attention to lighting when judging colors.
Honestly it's wild how much lighting changes everything, not just paint. My clothes look totally different in the store versus at home, same with furniture. It makes you realize how little control we have over how things actually look day to day. Maybe it's just me but I've started to like that shift, keeps things from getting boring.