Textured to represent concrete or clay, these gray tiles shine brightly when the light hits, revealing every groove and line in the material. Even though the color is relatively neutral, the design is useful for projecting natural light further into rooms. The horizontal grooves also project length, making areas seem wider than they actually are. This is an excellent material to be used next to large windows or in long hallways, two areas where the style is sure to impress. Gray tiles are also a perfect base for accentuating other parts of your home, such as furniture, small decorations, or house plants.