... My hair used to be a dark brown to green ombré and I loved it, but I'd had it for a while and thought I needed a change. I went in to the salon and wanted a black to silver ombré but was told it would be too harsh on my hair so I instead asked for a denim, greyish blue. What I got instead is an increadibly bright blue. Like primary colour, crayola paint kind of blue and I hate it so much. It's been bleached underneath so I can't let it raid back out to my natural hair colour. Should I dye it brown overtop, or go back to the salon? The hair colour I have right now is something I completely hate and can't stand having. If I dyed a dark brown or black overtop of it would there be any horrible side effects?