Yellow 6 & Blue 1

Yellow 6 (also known as Sunset Yellow FCF) and Blue 1 (also known as Brilliant Blue FCF) are synthetic color additives. They are petroleum-based dyes created through chemical synthesis.

These dyes are added to foods to give them a yellow-orange (Yellow 6) or blue (Blue 1) color. They are commonly found in candies, cookies, gelatin, and other desserts to enhance their visual appeal.

Yellow 6 and Blue 1 are approved by the FDA as color additives for use in food. In April 2025, the FDA announced a plan to phase out petroleum-based synthetic dyes, which includes Yellow 6 and Blue 1. JECFA has evaluated both Yellow 6 and Blue 1 and set acceptable daily intakes. Some studies have explored a possible link between synthetic food dyes and hyperactivity in children, but the evidence is mixed. EFSA has also evaluated both color additives.