We started to see crazy hair colors more often now. Blue, purple, green, red, these colors have now come out of the rare colors and started to be used a lot. Of course, these colors are very beautiful and remarkable. But if you are dye your hair for these colors for the first time, there is some information you need to consider. First of all, in order for your hair to be in this color, you have to lighten your hair towards yellow. So after this color flows, your underlying hair color will be yellow. These crazy hair colors will flow in a short time like a month. Therefore, you should remember that you need to dye your hair every month while dyeing this color.