← All E-code verdicts

Is E133 halal or haram?

Brilliant Blue FCF · Color (blue)

HalalLast reviewed: April 2026

E133 (Brilliant Blue FCF) is generally classified as halal. Synthetic dye.

What is E133?

E133, listed on labels as Brilliant Blue FCF, is a colouring agent that gives food a specific hue. You'll most often find it in packaged and processed foods.

Is E133 halal? The verdict

Good news — you can treat E133 as halal. Synthetic dye. The additive itself needs no special certification. Keep in mind the finished product can still contain other ingredients that aren't halal, so always read the full list.

How to check E133 on a label

If you see E133 (or "Brilliant Blue FCF") in an ingredient list, no further checking is needed for this additive — focus your attention on meat, animal fats, gelatin and flavourings instead.

Other names & label terms to scan for

  • Brilliant Blue FCF
  • Blue 1
  • INS 133
  • E133

Bottom line

E133 is halal. Safe to consume as far as this additive is concerned.

Stop guessing in the aisle

Halal Food AI flags E133 and every other suspect or not-halal additive automatically — just scan the barcode or snap the ingredient list. Plain-language verdicts, 25+ languages.