what color is ground wire

The ground wire can be identified by its color, which can vary depending on the country and the electrical code being followed. In the US, the National Electrical Code mandates that the protective ground wire be either bare copper, green, or green with a yellow stripe. In Europe, the International Electrotechnical Commission (IEC) wiring color codes are followed, and the protective ground wire is green with a yellow stripe. In general, green, green with yellow stripe, or bare copper wires are used as ground wires.