What is the best drugstore brand of hair color?

I want to add a little warmth and redness to my dark brown hair color. What brand of hair color would do this?What is the best drugstore brand of hair color?
if you want to try out something cheap, there is the Revlon Color Silk. Because you have dark brown hair, the color will not stick for long even if you went to a salon. Many times to get the color people want to stay, they have to bleach it first. But the color should last around 2 months and then you will have to dye it again. So go with the 2-3$ Revlon dye. It works just as well as the others, and it's affordable for the frequent re-dying!