I colored my hair light brown and now I have red tones. What should I use to get them out?

Hair Toner! It will take away all of the orange-y/red tones.

I colored my hair light brown and now I have red tones. What should I use to get them out?

I would go to a hairdresser and have them remove the colour and start all over for you '

I colored my hair light brown and now I have red tones. What should I use to get them out?

There are shampoos specially made for light brown hair, natural or colored, and they help keep the original color on. I believe Pantene has a good line now aimed to different hair colors. You might wanna try that.

Best luck !