Infuse your kitchen with a fresh and vibrant coastal vibe by choosing a coastal green theme. Paint the walls in a soft green shade reminiscent of sea glass. Choose white cabinets and countertops to create a clean and airy look. Incorporate seashell accents by using seashell-shaped knobs or a seashell mosaic tile backsplash. Add pops of coastal colors with coral or turquoise accessories. Complete the ambiance with natural elements like a wooden cutting board or a herb garden.