The primary color of ketchup is red. Most commercial ketchup is made from a base of tomatoes, which give it its vibrant red color due to the presence of lycopene, a natural pigment with antioxidant properties. This thick condiment is primarily used in various cuisines as a dipping sauce, dressing, or ingredient in dishes like burgers and fries. Ketchup can also come in various flavors and formulations, including variations like organic or no-sugar-added versions, but the classic recipe that most people are familiar with is firmly associated with its iconic red hue.