BMW paint color codes appear in varied spots: on the firewall, on the radiator support, on the door jamb, or in the trunk. Location varies by year; a diagram under Finding Your Color Code shows where. Typical code format example: 300, which corresponds to: Alpine White III Clearcoat. Same Color Code, Different Name: the same paint can have different names across models (e.g., 300 also called White Clearcoat, Premium White Clearcoat). The code is key to correct paint.