Blue 1 is a synthetic dye commonly used in food, cosmetics, and pharmaceuticals. It is known for its bright blue color and is often found in products like candies, beverages, and baked goods. The dye is derived from coal tar and is classified as a food additive under the code E133 in the European Union. In the United States, Blue 1 is approved by the Food and Drug Administration (FDA) for use in various applications. While it is generally recognized as safe, some individuals may have sensitivities or allergies to artificial colors, leading to ongoing discussions about the use of synthetic dyes in consumer products.