What color hair am i and how do i bring out yt natrual red highlights without dye?

imy dad was a really dirty blond as a kid then when he got older he had like medium brown with like a red tint in it because his mom was french and german and she had dark brown almost completely black hair.and my mom is italian who had medium brown.well everyone thinks i have black hair because indoors you cant really see my hair is medium brown unless you go in a really bright room or bathroom..then when you go outside it looks like my hair is medium brown and you can see my highlights very well but everyone still says my hair is not brown it is the sun.when it is medium brown with red highlightsyou just have to get in good lighting and get up close to me.so what color is my hair.am i dark brown,black,brown,medium brown.or a red .and how can i bring my red highlights out more to make them noticable.without dye