Red pajama pants can be both cozy and stylish, making them versatile for various casual settings. For a laid-back, comfortable look, pair them with a simple white or black t-shirt or tank top. If you're aiming for something a bit more chic, choose a satin or silk blouse in a neutral shade, like beige, cream, or gray, to complement the rich red. Alternatively, a matching red pajama set can create a coordinated and luxurious look. For colder months, layer with a cozy cardigan or oversized sweater to complete the relaxed yet stylish vibe.