Brilliant Blue FCF, also known as Blue 1, is a synthetic dye commonly used in food, beverages, and cosmetics. It is recognized for its vibrant blue color and is often found in products like candies, soft drinks, and ice creams. The dye is water-soluble and is approved for use in many countries, including the United States and European Union. This dye is derived from coal tar and is classified as a triphenylmethane dye. While it is generally considered safe for consumption, some individuals may experience allergic reactions. Regulatory agencies monitor its use to ensure safety standards are met in consumer products.