Getting the walls painted was a HUGE milestone in the basement reno. For the walls we decided to use Sherwin-Williams Agreeable Gray. I know it sounds like the world's most boring color, I really like a good warm neutral and this is it. The built-in wall is also going to be navy, so I think the warm gray with navy will be really nice. We're also planning on putting in a wood tile with warm red undertones, which will help warm up and brighten the room quite a bit.
Any part of this process that has resulted in less dust has instantly become my favorite part. Seeing a painted wall -- even in an active renovation zone -- was a huge milestone! Next stop: ceilings!