Purple over green?

If you could post a pic it would help. Most likely what you'll have to do is worm round the colour wheel by dying your hair blue and then from blue to purple if you don't want to bleach.

Purple over green can go mucky brown.

It depends on the shade and intensity of the green. If you put a pinky purple over it it should come out a bluer purple, or just blue. As long as the green is blue toned you shouldn't get a muddy colour

Bad Light but its mostly faded manic panic green envy. Im willing to blech it a little bit but not all the way to White, couse then it will fall of 😜

Oh that looks pretty blue,  you should be fine to put a purple toned pink over that 🙂
Although do a strand test first, just to be sure.

Allright,  thanks a lot. I just bought a lot of green dye, but when its done im definetly gonna try purple. Ive never tried anything else then green and turquise.