What about one red wall with edgecomb gray or Manchester tan on the other 3? Lots of red accents.

Benjamin Moore Nantucket Fog

I'd have been thrilled if my son expressed any interior decorating preferences at all. If he'd wanted his room red, I would have painted it red.

We just did Behr Silver Drop (Grey) with a dark blue and red room boy's room.

I would do a dark gray.

Grey pp here. If he really wants red, how about just painting one wall red. All four would be overkill.

We went with Benjamin Moore Swiss Blue which is a light/medium blue. Bedding and rug are dark blue and red.

Maybe gray, and then you can add lots of his red accents/ art or blue or both?

For a boy who really wants red walls but will settle for blue.