K-On! is a beloved slice-of-life anime that follows the adventures of a group of high school girls who start a music club. The main character, Yui Hirasawa, has a bright and bubbly personality to match her vibrant blue hair. She may be clumsy and scatterbrained, but her passion for music and her friends makes her a lovable and relatable protagonist.1. "K-On!"
Fairy Tail is a popular shounen anime that features a wide cast of characters with unique and colorful hair. One of the standout characters is Lucy Heartfilia, a celestial wizard with long blue hair. Despite her initial timid demeanor, Lucy proves to be a strong and determined member of the Fairy Tail guild with a heart of gold.2. "Fairy Tail"
In the world of Soul Eater, there are humans who can transform into powerful weapons and their partners who wield them. The main character, Maka Albarn, has striking blue hair and is a meister, or weapon wielder, alongside her partner, Soul. Maka is a determined and skilled fighter, making her a fan favorite among viewers.3. "Soul Eater"
When siblings Sora and Shiro are transported to a world where everything is decided by games, they use their gaming skills to become unbeatable. Sora, with his sky blue hair, is the more outgoing and strategic of the two and often leads their adventures. His sharp wit and unbreakable confidence make him a standout character in this fantasy anime.4. "No Game No Life"
Kamisama Kiss follows the story of Nanami Momozono, a high school girl who becomes the new land god of a local shrine. Nanami's hair turns a bright blue after she inherits the godly powers and responsibilities. Her journey to adapt to her new life, deal with troublesome spirits, and navigate her romantic feelings for her fox familiar, Tomoe, makes for an entertaining and heartwarming series.5. "Kamisama Kiss"
Kuroko's Basketball is a sports anime about a high school basketball team striving to become the best in Japan. The team has a secret weapon in the form of Tetsuya Kuroko, a former member of the "Generation of Miracles" with bright blue hair. Despite his small stature and unassuming appearance, Kuroko's skills on the court are unmatched, making him an essential member of the team.6. "Kuroko's Basketball"
Blue Exorcist follows the story of Rin Okumura, a teenager who discovers he is the son of Satan and possesses demonic powers. Despite his heritage, Rin decides to become an exorcist and fight against his father's plans for world domination. His blue flames and rebellious personality make him a standout in the world of exorcists.7. "Blue Exorcist"
In Noragami, deities and spirits exist in the human world, and they can be called upon by those in need. Yato, a minor god, has bright blue hair and works odd jobs to save up for his dream of having a shrine and worshippers. Along with his regalia, the spirit weapon Yukine, Yato goes on various adventures and learns the importance of human connections.8. "Noragami"
Durarara!! takes place in the bustling city of Ikebukuro, where various eccentric characters and supernatural occurrences are the norm. One of the main characters, Mikado Ryuugamine, moves to Ikebukuro and is immediately drawn into its chaos. With his blue hair and innocent demeanor, Mikado is a relatable and likable character caught up in a whirlwind of events.9. "Durarara!!"
Haruhi Suzumiya is an eccentric high school girl who unknowingly possesses the power to change reality. She is known for her bright blue hair and her desire to find aliens, time travelers, and espers to create a more exciting school life. Her charismatic and unpredictable personality makes her an unforgettable protagonist in this sci-fi comedy anime.10. "The Melancholy of Haruhi Suzumiya"