I've never felt so ugly

I used to have long, brunetteish blonde hair that I really liked. But for some reason, I thought I needed a change. So, I decided to dye it at a salon yesterday with the goal of having a soft, warm pretty light brown for fall and it ended up looking black. I absolutely hate it. I feel so ugly and I feel like I'm going to start crying every time I look in a mirror. I know I'm being dramatic and that it's just hair, but I feel like I'm suddenly the ugliest person on the planet and I just want to hole up and never show my face again.