“Black rice may be long-grain, medium or short-grain. Grown on a small scale, black rice has never been as common as other types, including white, brown, and red rice.

This cultivated rice came in a range of colors, including red, brown, white, and black due to natural changes in the rice grain's outer layer. Wild rice was only one color: red.

Purple rice has a deep black color, but it turns purple when people cook it. Sometimes, people call it black rice. It grows mainly in Asia and is slightly chewy with a nutty flavor.