Gintoki Sakata (坂田 銀時, Sakata Gintoki?) is the main protagonist of the Gintama series. He is the founder and president of the Yorozuya, as well as a highly-skilled samurai, having fought in the Joui War in the past. During the war, he became known as the Shiroyasha (literally meaning "White Yaksha", Yaksha being a spirit or demon in Buddhism, Hinduism and Jainism) due to his powerful.
I think Sorachi doesn't keep eye colours consistent for some characters for some reason. Gintoki's go from blue to black to red, for example. And I don't think it's just to match with the anime, because some of these don't match the timeline or are even in the same image.
In the case of Gintama, several characters' hair and eye coloring actually differ from Hideaki's intentions. Gintoki himself actually has green or gray eyes, which sometimes appear red, in the manga while in the anime, they are always red, and his hair color is slightly adjusted as well. Anime boy Gintoki Sakata is a adult with to ears length blue hair and red eyes.
Gintoki Sakata Color Palette This Gintoki Sakata from Gintama Series has Aqua, Blue, Cyan, Dark Blue, Dark Pink, Light Blue, Light Sky Blue, Light Warm Grey, Turquoise, Very Light Grey & Wine Colors. Gintoki has naturally wavy hair which causes him no end of distress. His silvery-blue hair is in a perpetually messy state, which is sometimes exaggerated into a frizzy afro when Gintoki's hair is hit by extreme heat.
He has indeterminate grey/green (in the manga) or bordeaux-colored (in the anime) "dead fish eyes" (comparison courtesy of Hijikata Toushirou), which are called such because they. Gintoki Sakata (Japanese: 坂田 銀時, Hepburn: Sakata Gintoki) is a fictional character in the manga and anime franchise Gintama created by Hideaki Sorachi. Gintoki is the protagonist of the series and his name serves as part of the basis of the series' title.
Appearance Gintoki is a man of average height, with curly, bright silver, hair, styled in a perm and brown eyes. He typically wears a black shirt, with a white yukata worn on top of it. In anime, a lot of artists tend to focus detail on the character's eyes but for some reason, I never really took note of Gintoki's eye color for the longest time until someone pointed it out.
Sure, there was that red glint when he got serious in fights but other than that it's incredibly subtle! That particular eye color would usually come across as demonic (although that suits him. Gintoki SAKATA overview custom lists comments Gender: Male Hair Color: White Rank #144 Rank #2,016.