In Chinese culture, the tiger is the king of the beasts and has been presented with a 王 (pinyin: wáng; literally: 'king') on his forehead for centuries. According to legend, the tiger's tail would turn white when it reached the age of 500 years. In this way, the white tiger became a kind of mythological creature. It was said that the white tiger would only appear when the emperor ruled with absolute virtue, or if there was peace throughout the world. Because the color white of the Wu Xing theory also represents the west, the White Tiger became a mythological guardian of the west.
The White Tiger as interpreted by contemporary Chinese artist Ai Weiwei. From his series Circle of Animals/Zodiac Heads, shown here on exhibit in Prague, 2016.
In Overwatch’s Chinese New Year 2018 event (Year of the Dog), Genji has a skin inspired by the White Tiger.
In the video game Final Fantasy XIV: Stormblood, Byakko appears as a boss in the Four Lords trial subquest, appearing as a white tiger that transforms into a giant humanoid with his right arm retaining elements of his tiger form.
In Kung Fu Panda: The Paws of Destiny, he is one of the Four Constellations, being the healer of the group. His chi is used by the trigger-happy and violent Jing, allowing her to heal and pacify others.