Yes, beige curtains can go with grey walls. Beige is a neutral color that can blend in easily with any wall color, while grey is a cool tone that grounds the room and creates an airy atmosphere. The combination of these two colors will create a timeless look that will never go out of style. To complete the look, mix and match different shades of beige and choose furniture pieces in warm tones like wood or brass to provide texture and contrast against the cooler shades of grey on your walls.