Dark-grey, also known as charcoal or slate, is a color that's commonly used in both fashion and interior design. This rich and sophisticated shade works well with a myriad of colors, making it a versatile option for all seasons. Some other synonyms for dark-grey include gunmetal, anthracite, onyx, smoky, and pewter. All of these shades have varying undertones, making them suitable for different applications. For example, gunmetal leans more towards blue while anthracite has a cool, greenish tint. Overall, the beauty of dark-grey is how it can add a sense of depth and elegance to any space or outfit, no matter the shade.