Artificial Color Blue 1

Blue 1, also known as Brilliant Blue FCF, is a synthetic color additive. It is a petroleum-based dye created through chemical synthesis.

Manufacturers add Blue 1 to provide a bright blue color to foods and beverages. It is commonly found in candies, snacks, soft drinks, and baked goods to enhance their visual appeal.

Blue 1 is an FDA-approved color additive for use in food, drugs, and cosmetics in the United States. In April 2025, the FDA announced a plan to phase out petroleum-based synthetic dyes, including Blue 1. JECFA has evaluated Blue 1 and set an acceptable daily intake, as has EFSA. Some studies have suggested a link between synthetic food dyes, including Blue 1, and hyperactivity in some children, though the evidence is mixed and not conclusive across all studies. The FDA notes that current evidence does not establish a causal link for the general population.