You can find your paint code on the manufacturing sticker as explained below.
Most BMW's will have their paint code located on the sticker under the hood, or on the drivers side strut tower. Mini's display their paint code on the passenger side under the hood on the firewall, or the passenger side strut tower. BMW & Mini paint codes are usually 3-digits and can be a mix of letters and numbers. Ex: B39, 896, A52, A76