I dyed my hair using Medium Brown dye, but my hair has golden undertones?

Dyed my hair medium brown... had a neutral base

My hair is like brown with yellowish golden undertones now

I want to have a medium brown/dark brown hair color with an ASH understone, nothing close to yellow.

I am going to pick up some more dye tomorrow. I just used this little bottle from Sally's called Preferences Medium Brown.

What should I use to achieve my results I want?

I dyed my hair using Medium Brown dye, but my hair has golden undertones?

Yellow is a warm undertone. Go for something that says cool or ash on it. Ask someone who works there to help you out. They should know what theyre talking about.