I tried both suggestions with no success. I even attempted to extract and perform sim surgery on him but when I tried to create him in CAS, his body still had that blue tinge regardless of what skintone I selected.
Edit: Using ZephyrAsh's suggestion of deselecting items in the full face makeup section (I did it in Bodyshop), this got rid of the blue tinge and I was able to extract the sim and perform SimSurgery on him.