How to dye hair this color?

I am a hairstylist and i often get people that want that dark rich brown but with a red tint. Your best bet is to go to a salon with a picture of her hair so that your stylist knows exactly what you want. All your stylist should have to do is choose the color of brown that you like and add a little bit of red to that color. Most color lines have a brown color with red in it already it all just depends on how dark that you want it. I use redken in the salon that i am at and the color that seems to work best to achieve that color is called 5Br or if you like it a little darker you could use a 4Br. Every brand of color is different so i would just ask your stylist.