Color Additive CAS: 3844-45-9 EU: E133

Blue 1 (Brilliant Blue)

Blue 1 (Brilliant Blue) (E133), CAS 3844-45-9, is a color additive additive holding a composite safety score of 2 out of 5 (Caution). The U.S. Food and Drug Administration currently classifies it as Approved, while the European Union lists it as Approved. It is most commonly used as Candy, beverages, ice cream, canned peas.

No U.S. state has enacted specific legislation targeting Blue 1 (Brilliant Blue) to date, keeping federal FDA classification as the operative standard. State-level food safety legislation remains active nationally, and that picture may shift as new bills advance. Our regulatory timeline records 1 distinct regulatory event spanning multiple jurisdictions, illustrating how oversight has evolved over time.

Peer-reviewed research has flagged 1 distinct area of health concern for Blue 1 (Brilliant Blue), which factors directly into the assigned safety score. The European Food Safety Authority has published an evaluation dated 2010/11/22. EFSA has noted an overexposure risk classification of "moderate" for typical consumption patterns. All figures above draw on FDA SAFFA inventory records, EU food additive regulation (EC) No 1333/2008, EFSA scientific opinions where published, and legislative records from individual U.S. states.

Regulatory Snapshot

Property Value Source
FDA Status Approved FDA SAFFA
EU Status Approved EC 1333/2008
E-Number E133 EU additive register
CAS Number 3844-45-9 CAS Registry
Category Color Additive FDA functional class
Composite Safety Score 2 / 5 (Caution) PlainIngredients methodology
EFSA ADI Not established EFSA scientific opinion
U.S. State Actions 0 states State legislative records
Tracked Products Not yet tracked Open Food Facts (US)

Values reflect official agency classifications as published by the U.S. Food and Drug Administration and the European Union's regulatory framework. See our methodology for scoring details.

Caution
Safety Score: 2 out of 5
Safety Rating 40.0%

FDA Status

Approved

EU Status

Approved

E133

U.S. State Regulations

0 states

None enacted

Safety Assessment

Blue 1 (Brilliant Blue) receives a safety score of 2/5 (Caution) based on a composite analysis of FDA regulatory status, EU approval, scientific literature on health effects, and state-level legislative actions. The FDA has approved Blue 1 (Brilliant Blue) for use in food products under specified conditions.

Research has identified 1 area of health concern associated with Blue 1 (Brilliant Blue). Consumers with specific health conditions should consult a healthcare provider before consuming products containing this ingredient.

What is Blue 1 (Brilliant Blue)?

Synthetic blue dye. Petroleum-based.

Health Concerns

  • Generally considered lower risk than red/yellow dyes, but FDA phaseout announced by 2027.

Common Uses

Candy, beverages, ice cream, canned peas

Regulatory Timeline

2025-04-15 FDA
Phaseout Announced

Included in FDA food dye phaseout.

Frequently Asked Questions

Is Blue 1 (Brilliant Blue) safe to consume?

Blue 1 (Brilliant Blue) has a safety score of 2/5 (Caution). Scientific studies have raised health concerns. Check with a healthcare provider for personalized advice.

Explore PlainIngredients

Data Sources

  • FDA Substances Added to Food (SAFFA) Inventory
  • EU Food Additive Regulations (EC) No 1333/2008
  • State food safety legislation and bill records

Related

Data sourced from official EWG, FDA GRAS, and ingredient toxicology databases. See our methodology for details. Retrieved and formatted by PlainIngredients Editorial