A list of fan fics which have characters with unusually colored hair.
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* Unnatural, non-dyed hair colours in a fandom where the canon doesn't have them is considered a sign of a MarySue, though not as common as TechnicolorEyes. See ''Fanfic/LightAndDarkTheAdventuresOfDarkYagami'' and the character's "[[MindScrew dark black rainbow hair]]". [[invoked]]
* In the crossover fanfic ''FanFic/CSIDeathByChocolate'', adult Violet Beauregard, last seen post-blueberried at age 12(ish), has blue hair. And skin.
* Pagally of ''FanFic/WinterWar'' has light purple hair, odd but hardly out of the question considering [[Manga/{{Bleach}} the source material]]. Subverting the usual implications of this trope in a fanfic, Pagally is originally presented as a more or less generic low-ranked female Arrancar, and while she plays a role as the plot goes on (and joins the shinigami side because she's more scared of Aizen than she is of them) she's not by any means one of the main protagonists of the fic.
* [[WesternAnimation/BuzzLightyearOfStarCommand Buzz Lightyear]] in ''Fanfic/ForGood'' and ''Fanfic/OneHundredDays'' has unruly blue hair, hence the perpetual thermal hood. In the former, it's [[JustifiedTrope justified]] because he is a HalfHumanHybrid, though he doesn't know this himself for a long time.
* In ''[[{{Fanfic/AceCombatTheEquestrianWar}} Ace Combat: The Equestrian War]]'', the characters who wear blue manes are: Gale, Firefly, Tornado Swirl, Sunburst, Blueberry and [[spoiler: Sky Eye]].
** Don't forget [[{{CurtainsMatchTheWindow}} Lightning Bolt]].
* ''Fanfic/GameTheory'' provides an interesting justification for this trope; unusual hair colors are the legacy of Alhazredian gene modification used to denote tribal lineage.
* [[ProfessionalWrestling Pro wrestler]] Wrestling/TheBlueMeanie in ''Fanfic/TheJWL''.
* ''{{Fanfic/Anthropology}}'': When Lyra [[spoiler:is turned into a human, her hair]] is the same color as her mane: mint green.
* FanFic/AGrowingAffection: Yukihana has cyan (light blue) hair. Ayameko has gradient colored hair (blue on one side changing slowly to purple). The Kouin sisters have blue hair, but one of them changes it to green.
* ''Fanfic/CalvinAndHobbesTheSeries'' has Father Brainstorm, who has green hair.
* Some of the [[ParodySue SUEs]] in ''Fanfic/PerfectionIsOverrated'' have unnatural hair colors, such as [[MarySueClassic Mariko]] (blue), [[TimeMaster Toki]] (silver) and Sekai (green), and others have unnatural colors for Japan, such as Shizune ([[BlondesAreEvil blonde]]), [[spoiler:Bachiko (blonde) and Meiko ([[EvilRedhead redhead]])]]. In a deleted scene, Midori suggests looking for anyone with unusual hair colors as a possible SUE suspect, but retracts that when she realizes the mix of hair colors among the MaiHime cast, as noted in the anime page.
* In ''FanFic/MarksOfTime'', some residents of Fort Collins have blue or pink hair, because in the future, hair dye is permanent until a "special shampoo" washes off the dye.
* ''Fanfic/ReturnToHinamizawa'' runs under the assumption that the unusual colours in the source material are natural, and they follow similar inheritance patterns to real hair colours.
* While there are plenty of characters who have strange hair colors in FanFic/JusticeSocietyOfJapan (what with being an huge Mega Crossover), Hope is a shape-shifter who ends up adopting a WhiteHairedPrettyGirl disguise.
* The {{Wiki/Nickelodeon Fanon}} show [[http://nickfanon.wikia.com/wiki/Y-Guy Y-Guy]] has the character Hearty, who has pink hair.
* {{Fanfic/Nightfall}}: The Shinobi have hair that usually matches their color scheme, Cristyle has light blue hair to match her blue armor and Hades has pink hair to match his red armor, conversely Syljaʻs hair is blonde to match her green armor.
* In ''FanFic/MegaManReawakened'', Robert has blue hair, as does his father.
* Hibiki, the protagonist in ''FanFic/SwimmingInTerror'', has bright orange hair. However, it is dyed.
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