what's the best colour to go for if you have a lot of greys in your roots?
My hair is currently dyed an auburn brown but my roots are about 80% grey 
I have an appointment for a colour in 2 weeks and was wondering,is it better to go lighter so there's less of a contrast or stay the same? and if i go lighter would that be highlights? bit clueless when it comes to hair and i'm not ready to go grey just yet!!