Weight plates can come in a variety of colours, including black, grey, silver, red, blue, and green. Some weight plates are also available in multiple colours.
Some brands offer colour-coded weight plates to make it easier to identify the weight of each plate.
For example, a common colour coding system is to use RED for the heaviest weights (such as 25 Kg) and lighter colours for smaller weights (such as green for 10 Kg or black/ grey for 5 Kg).