>>101252045No hair color is completely dominant
And you don't always inherit the more likely dominant genes
Birth isn't precisely predictable, it all deals in probabilities. The most dominant hair color could be possessed by your great grand-aunt, be carried but not shown by her brother (your great grandfather), pass on hidden in your family's DNA for two more generations, and then express itself in just you, and never express itself in your kids for another three generations, and then show up again.
It's not the statistically likely probability, but it's 100% possible.
