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As many of you may know, Luke Skywalker has long, wavy golden blond hair (just like me). But as others of you may know, his parents, Padme and Anakin, both had darker brown hair. So how did Luke get his luscious locks? Did Anakin cheat on Padme? Did someone mix the real Luke with a blond boy on the way to Tatooine? Or was this just a mystery with the answer hidden in the depths of the Unknown Regions?

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    Luke's hair looks blond in some shots and brown in others. Anakin's hair looked blond when he was a boy, but brown when he was a young man. I figure they both had dirty blond hair, which would account for their hair looking either blond or brown, depending on the lighting. Not to mention recessive/dominant alleles and the possibility of genetic mutations, which make it entirely possible for a child to have different coloured hair than either of their parents. Nov 8 '21 at 21:33
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    "Did Anakin cheat on Padme?" - Erm, I'm not sure how you think genetics work, but this isn't it.
    – Valorum
    Nov 8 '21 at 21:36
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    When a Sith Lord loves a woman very much, he takes her to another planet and makes an awkward pass at her and then... uhm... she confesses it back right before they think they'll die and, somewhere you get babies. If you need details, go ask your mother. Or George Lucas.
    – Machavity
    Nov 9 '21 at 17:05
  • My dad was born with golden hair, but anyone who knew him as an adult would know he had dark brown hair. My mom had black hair, but one of my brothers also had golden hair when he was young, but his hair is also dark brown now. Hair color is weird. Nov 9 '21 at 18:35
  • When I was young I had brown hair. It is now blond. OK, platinum blond but still...
    – Jon Custer
    Nov 9 '21 at 19:40
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This is simply how genetics works in the real world. There is no other explanation needed.

See: What Color Hair Will My Baby Have? (A Guide to Hair Color Genetics)

(from the article) Hair chart

"Brunettes Can Give Birth To Blondes (Single Recessive Genes)"

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    What indication is there that human genetics of the “real world” are the same for alien humans of the GFFA, or particularly for the genetic line of a child who had no father in any case, if the mother is to be believed? Nov 8 '21 at 23:09
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    Oooh, look at all the cute tribbles! Nov 9 '21 at 0:06
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    @Silly_But_True, the humans in the Star Wars universe have a comparable biology to contemporary Earth humans. We should assume similarity unless there is a canonical reason not to. Besides, that isn't just how human hair colour works, it's how genetics works. It works that way for any inherited trait in any species that reproduces sexually. Early experiments were on inherited smooth or wrinkled skin in beans, which works the same way.
    – Pete
    Nov 9 '21 at 0:32
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    The text say "single recessive genes", but I was taught (although long ago, and it was highschool biology), that major Rh blood types can be explained by single recessive genes, but hair and eye colors are multi-gene factored, so any combination is possible and the probability calculations are impressivily complex.
    – D. Kovács
    Nov 9 '21 at 8:13
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    @D.Kovács There are multiple genes involved, but the overall effect is usually not too far off from how a ternary single-gene trait is inherited. Nov 9 '21 at 18:03
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Anakin Skywalker,

Luke's father,

has blond hair when he was younger

enter image description here

Which progressively darkens the more time he spends away from the twin suns of Tatooine.

enter image description here

Much the same as Luke's.

Before
enter image description here

After
enter image description here

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    Those are two photos of Jake Lloyd at the same age, is there reason to think they intentionally made his hair look darker in the second one or is it just that he had darker roots that became more visible when they gave him a haircut? In the latter case there's no reason to think this had any in-universe explanation like the idea that his hair "progressively darkens the more time he spends away from the twin suns of Tatooine", unless there was some book or other source that actually stated this.
    – Hypnosifl
    Nov 8 '21 at 21:56
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    Likewise with Luke, unless we know they intentionally changed the lightness of his hair for in-universe reasons, the difference is probably mostly a matter of Mark Hamill's hair looking different when shot in natural sunlight vs. indoor lighting (his hair still looked pretty light aboard the Sail Barge in Jedi for example), and there could have been some actual darkening with age.
    – Hypnosifl
    Nov 8 '21 at 21:58
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    It's worth noting that this phenomenon happens to most blonds in reality here on Earth too. People who are born even very light blond more often than not get progressively darker hair as they mature (at least until they get old enough that it starts turning grey or white). Nov 9 '21 at 14:42
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    "Which progressively darkens the more time he spends away from the twin suns of Tatooine." This seems to be an important factor. My own hair ranges from light brown/dark blond at the end of winter, to a light sun-bleached blond if I get to spend lots of time at the lake in the summer. (FWIW, both parents had nearly black hair.)
    – jamesqf
    Nov 9 '21 at 16:32

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