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Is E131 halal or haram?

Patent Blue V · Color (blue)

HalalLast reviewed: April 2026

E131 (Patent Blue V) is generally classified as halal. Synthetic.

What is E131?

E131, listed on labels as Patent Blue V, is a colouring agent that gives food a specific hue. You'll most often find it in packaged and processed foods.

Is E131 halal? The verdict

Good news — you can treat E131 as halal. Synthetic. 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 E131 on a label

If you see E131 (or "Patent Blue V") 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

  • Patent Blue V
  • E131

Bottom line

E131 is halal. Safe to consume as far as this additive is concerned.

Stop guessing in the aisle

Halal Food AI flags E131 and every other suspect or not-halal additive automatically — just scan the barcode or snap the ingredient list. Plain-language verdicts, 25+ languages.