Bring your interiors to life by diving into the deep blue sea. No matter your decor style, furnishing your home with chameleon-like colors, including emerald, sage and midnight blue, can help bring a breath of fresh air. For a complete look, add dark greens to your walls, navy to your appliances and a combination of blue-green shades to your textiles. Round it out neutral surfaces on the floors, walls and countertops.