Start with Dusty Blue on the walls. It is the kind of soft, slightly grayed blue that never feels loud, so the room stays gentle in the early-morning light and easy to settle into at night. In a nursery that matters, because you want a space that calms a baby down rather than waking them up. The muted tone reads sweet without leaning too sweet, and it grows with your child instead of feeling babyish in a year.
Keep the trim, doors, and ceiling in Soft White so the blue has a clean, airy frame and the whole room feels fresh and uncluttered. Then bring in Warm Wood as your accent, through the crib, a small shelf, or a rocking chair, to add a bit of cozy warmth against all that cool blue and crisp white. So the plan is simple: dusty blue on the walls, soft white on the trim and ceiling, and warm wood touches in the furniture and details.