Electrical wires come with a wide range of colors and each color is used for a different purpose. Like green colored wire is used for earthing and black is used for neutral purposes. The below chart shows the wire colors available in India and its purposes

ColorsFunction/ Purposes
Green Earthing / Grounding Purpose.
Black Neutral Purpose
Red Phase lines / Live Wires in case of single phase connection
Yellow / Blue Used along with red wire in case of 3 Phase connections
Grey / White Used for distribution lines / Ups / Inverter connections

Electrical wires comes with a wide range of colors and each color is used for a different purpose. Like green colored wire is used for earthing and black is used for neutral purposes. The below chart show the wire colors available in India and its purposes