A powder room is small, so it is the perfect place to be brave, and Golden Mustard on the walls turns that tiny space into a warm little jewel box. This is a rich, sunny gold with a vintage feel, the kind of color that makes people smile when they flip the light on. In a room you only pass through, it gives you a quick hit of warmth and personality without ever feeling like too much.
To keep all that gold from running away with the room, lean on Deep Navy as your accent. It is a moody, almost-black blue that grounds the mustard and makes it look even richer, whether you bring it in on the vanity, a framed mirror, or the lower wall. Then let Soft White handle the trim, ceiling, and any molding so the edges stay crisp and the room can breathe. Mustard on the walls, navy on the vanity or below a chair rail, soft white framing it all, and you have a powder room that feels both retro and pulled together.