Gray has more than one direction.
Place a white card next to the fabric and compare it by the window and under evening light. A warm light wall color can balance a cool couch. If the undertone is unclear, start with a restrained neutral palette.
Let the floor connect the scheme.
Soft natural shades are a useful starting point with light wood. Warm textiles can add another note to gray flooring. Avoid repeating the exact couch color on every surface: different lightness levels create readable layers.
Screen colors are a guide. Test physical samples in your home.
Keep exploring
What paint colors work with a beige couch?
Warm paint colors for your living room
Paint colors for a low-light living room
How to match rugs and wall colors
How to match curtains and wall colors