For the past few months I have been washing my hair with purple shampoo in order to turn my golden blonde hair ash, I have just had my colour done and instead of having black roots I now have bright yellow roots that don't match the rest of my ash hair!! Should I just keep applying the purple shampoo to my root and wash the rest of my hair with ordinary shampoo and hope it will match up? Or get low lights through the top to disguise it? My only concern is that the low lights won't be an even colour as my hair is not one colour to start with!! Help