So I used Logics (a salon brand only available to professionals) hair dye in blue brown and light brown, mixed it together with a 20 volume developer and covered my entire head with it. This resulted in a very dark brown with plum undertones, thanks to the red that was left behind. And surprisingly, it looks pretty good.
I actually like this color. I've already been asked several times what color I use and who does my hair and I have to explain the ridiculous long process of why my hair is the color that it is and it isn't just straight from a bottle. The downside of all this? My hair is super dry and I may have to leave it alone for awhile to get it back in good shape. That means no more dying for a couple of months. Well, we'll see how long that lasts lol.