Sefardim by and large did not intermarry and didn’t take in a lot of Geirim. So why do they look like those around them?
Sefardim look like the people in the countries they lived in because, just like Yaakov trimmed branches to look spotted, striped etc, people after generations look like the surrounding indigenous people. I heard this from my Rebbele.
What color was the tone of the skin of the Avos? Moshe Rabbeinu? Look in Rashi on the Chumash (Bereishis 12:12). Elimelech and his people were white (see Sifsei Chachomim Ibid)
