Akira Toriyama's Dragon Ball is a cultural icon since its 1980s debut. The influential shonen series has grown in popularity over the years. Dragon Ball features incredible clashes of power where the fate of the universe is at stake, but there are many characters who have gone on to become some of the most beloved individuals in anime.
Dragon Ball, like many anime, has characters with unusual hair colors. Many people have blue, purple, green, and even pink hair, including famous heroes like Bulma and her son Trunks. Bulma is well-known for her blue hair, which she has in a variety styles. However, Future Trunks as well as Young Trunks are known for their purple hair from Dragon Ball Z.
In Dragon Ball Super, Future Trunks' hair suddenly changed to blue. However, his mother has blue hair and his father has purple hair.
Many people don't know that Bulma's hair is purple in the Dragon Ball manga. This shade of violet closely resembles the color Trunks would be known for. Her hair is dyed in blue in the first chapter of this manga. The anime uses that color instead of purple. Bulma's father Dr. Brief also has light blue hair, which is worth noting.
Trunks was first introduced in manga. He was drawn (in color images) with the same shade as his mom's blue hair. Toei chose to make Trunks Bulma's hair purple in the anime adaptation of Dragon Ball Z stories.
Trunk's Hair Color
Trunk's hereditary hair color finally made him look like both his mom and his maternal grandfather since he didn't have the brunet hair of his father's genetic line. This actually makes him look detached, as Saiyans usually have dark hair instead of blue/purple tresses. However, it is not clear why Young Trunks from the main timeline have purple hair.