One more bathroom wall shot

Everyone is seeing different colours on their devices so we can't really be trusted to see what you're seeing. Bravo on testing colours on large samples. Have you observed them in different light and throughout a few sunny and cloudy days? I would start with choosing the vanity colour then choose the wall colours accordingly. On my monitor, the left vanity colour (3rd picture, right?) looks inky blue and the right one looks to be a dark grey. I prefer inky blue.