Beaton sofa, Soane, soane.co.uk 

Sofa fabric: Osmunda Frond linen, Color: Azure, Soane, soane.co.uk

Seat cushion fabric: Osmunda Silhouette linen, Color: Azure, Soane, soane.co.uk

Pillow fabric: Simla linen, Color: Blue, Penny Morrison, pennymorrison.com

Pillow trim: Cambridge Strie Braid 34161, Color: Robins Egg, Samuel & Sons, samuelandsons.com

Stripes on wall:

Metropolitan AF-690, Benjamin Moore, benjaminmoore.com. 

Decorator's White OC-149, Benjamin Moore, benjaminmoore.com

Upholstery and slipcovers by Melanie Williams