What color is promethazine cough syrup?

There’s no single, guaranteed color for promethazine cough syrup. The appearance varies by the specific product and its formulation (for example, whether it’s a plain promethazine syrup versus a combination cough/cold syrup), plus the manufacturer and packaging.

If you can share the exact brand name and strength on the bottle label (or upload a photo of the label), I can narrow down the likely color for that specific product.