Praise be to Allah.
It is forbidden to have tattoos on the body . Prophet Muhammad (peace and blessings of Allah be upon him) cursed the one who adds hair extensions and the one who has this done, and the one who does tattoos and the one who has this done.
A tattoo may be on the cheek or lip, or elsewhere on the body, where the skin color is changed to blue or green or black, etc.
But having a tattoo does not prevent a person from performing Hajj .