The primary color of a lime is green. Limes are small, round citrus fruits that typically have a vivid green skin when they are ripe. Often used in cooking and beverages, they impart a tangy flavor that enhances dishes and drinks. The green color indicates that the fruit is still unripe, but ripe limes may turn a slightly yellowish hue. Limes are popular in various culinary applications, including cocktails, salad dressings, and marinades. They are also rich in vitamin C, making them a healthy addition to many diets.