Red is recessive. Husband has brown hair that develops red highlights in the sun, my FIL had pale orange hair; my maternal grandfather Irish red hair, paternal grandmother Scots red. My sister has auburn hair, one cousin is strawberry blonde. My first question in the delivery room: what color is his hair? He's blonde. HRH Princess Anne had blonde curls as a youngster. Who can resist a Corgi, BTW? I expect Baby Sussex will have curls & possibly red highlights in brown hair. Both parents have freckles!