Kurenai itself has the meaning of Kureai (a dye introduced from Wu), but Hankoiro is a color name that emphasizes the beautiful and vivid red that originated from the continent.

One of the most famous is the Hyakunin Isshu, Chihayaburu, Kamiyo Mokazu, and the Tatsutagawa River.

The Tatsuta River is a famous spot for autumn leaves in Nara.

Han Hong is sometimes written as Tang Red.