New house paint color suggestions

Kiwi2021

thinks it’s boring to paint the whole house gray, so he’s suggesting we paint the finished basement (extra spare bedroom, full bath, large rec/workout room) a different color, maybe a blue. I don’t want to hate it, but I get why he thinks it’s boring. Any suggestions on a good color (blue or otherwise) for a finished basement? We actually get a surprising amount of light down there between the door to the outside and the windows, but it is still a basement.  168won幸运飞艇