Bring the charm of a seaside cottage into your kitchen with a coastal beach house theme. Choose pastel colors like soft pink, mint green, or pale yellow for the walls and cabinets. Incorporate seashell accents by using seashell-shaped drawer pulls or a seashell mosaic backsplash. Add vintage touches with distressed furniture or antique kitchenware. Complete the look with coastal-inspired accessories like a woven basket for storing fruits or a beach-themed wall clock.