I have been coloring my hair black with the same hendigo mix once a month for 10 months. I really love the black but decided to experiment to see if I could get it to a dark brown instead. Upon reccomendation from others here I did 2 applications of color oops. It lightened my roots to my natural color (light brown) and turned the length blue black. I decided to just keep it black, after all it was just an experiment! So I went over it with my usual mix of 75% indigo 25% henna, black tea and a little salt. But it turned my roots ELECTRIC green and my length this awful black-khaki green. What happened and what should I do?! can anyone help me?