The different coloured license plates represent different vehicles. Here’s a quick summery of the different coloured licence plates:

Private vehicles: White characters on black background. For reflective licence plates, the front plate has black characters on white background, and the rear plate has black characters on yellow background

Off-peak vehicles: White characters on dark red background

Research and Development vehicles: White characters on yellow and blue background

Hazardous Materials (Hazmat) Transportation vehicles: Black characters on orange background

Vintage and Classic vehicles: White characters on dark red and yellow background

Pulau Ubin vehicles: White characters on green background

Restricted use vehicles: White characters on dark red and green background

For more information, click on https://www.motorist.sg/article/203/5-fun-facts-about-your-car-licence-plate to find out more!