You can create variants for a product by adding options like size and color. Each combination of option values can be a variant.
For example, suppose that you sell T-shirts with two options: size and color. The size option has three values: small, medium, and large. The color option has two values: blue and green. One specific variant from these options is a small blue T-shirt.
Please Note: For color variations, you can only use the available color names that Browser supports. Please see the color names to set your product color variation HERE