>>212814610They broadly get classified into being either Stony, Salty, or Sandy. As with a lot of Westeros, the Stony Dornish are some admixture of First Men and Andals. Salty Dornish are the ones that have Rhoynar influence that makes them typically olive skinned and dark-haired, but even they are some admixture that includes First Men and Andal. Sandy Dornish are darker-skinned that the Salty Dornish though that is more due to them being tanned by the sun. There is also a fourth small group that is pure Rhoynar.