Is my boyfriend mixed?

My boyfriend is Mexican but he has freckles all over his face and body, moreover, his hair is black but he has a goatee that is red from the bottom but otherwise black. I never asked him directly if he's mixed since I thought maybe he wud find it rude or something but since our relationship is going pretty well and since we will most prolly have kids one day, I m thinking wat our child will look like and I m pretty excited, so lemme know if he might be part Irish and part Mexican which I m thinking he is.