Everyone has the right to make mistakes, even in terms of hair color!
Coca-Cola contains such acidic components that it can erase (or at least blend) any trace of capillary failure.
After a disguised evening or a choice of coloring little inspired, get rid of the color in the following way:
Wash your hair with 1 L of Coca-Cola .
If you are flexible, you can soak them in a bowl for a few minutes (the ridiculous does not kill, you are assured).
Wash a second time abundantly with your usual shampoo.