Paint the walls a light blue, aqua, sea foam or cream color. The light colors provide a soft background for the brown comforter while creating a space infused with colors reminiscent of the ocean.
Choose furniture that works with an ocean theme and stands out from the brown comforter.
Dress up the brown comforter with lighter and brighter pillows, a rug and curtains. Pile coral, sea foam or aqua pillows on the bed and add a matching throw over the foot of the bed. A lighter rug placed along the sides or foot of the bed in the same colors is another option. Sheer curtains or brown-and-blue-striped curtains work with the ocean theme and pull the other colors together.
Hang framed seashells, seashell-framed mirrors or images of the ocean on the walls. Use frames in the same shade of brown or install brown floating shelves to hold clear vases or jars filled with sand and shells.
Accessorize the room with shells, plants, candles or photographs of the ocean. Miniature ship models inside of bottles, driftwood with your name, or novelty palm tree knobs on your dresser are ideas, depending on the look and feel of the room.