Bring the ambiance of a seaside bistro to your kitchen with a coastal beach house theme. Choose a color palette inspired by the ocean, such as shades of blue and green. Install a marble countertop and add bistro-style chairs for an elegant touch. Incorporate seashell accents by using seashell-shaped plates or seashell-printed napkins. Hang a vintage beach sign or display coastal artwork to complete the seaside bistro look. This kitchen ambiance will make you feel like you're dining at a charming beachside cafe.