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Originally Posted by Young stormlord  Let me try explaining this. Martin's genetics rules are pretty much same as in real world. Remember Robert's bastards? Well in our world black hair is stronger than blue hair (actually black is the strongest haircolor in real world).
Targaryens were mating between themselves to keep their genetics (indigo and purple eyes are pretty rare irc) clean, I mean when u mate silver-haired purple eyed male with golden hair female with blue eyes, posibility to get black haired ofspring is 0.
Now when u mate silver haired purple eyed male (Rhaegar) with blackhaired black eyed female chances to get silverhaired offspring are pretty much 0. (except if one of females ancestors had blue hair and female has hidden gene for it) |
I'll start off by presuming every time you said "blue" you meant blond
And genetics is far more complicated that the simplistic version you've highlighted above. A brown-haired woman with a Valyrian grandmother could give birth to a silver haired child with purple eyes, even if she married someone with brown hair & brown eyes, though the probability would be low.