I did a strand test of dark brown dye over henna and it worked, it turned a light brown (I didn't leave it in the full recommended time). But now I can't find the strand anymore . I don't know if the color washed off (does that happen with dye over henna?) or if it just mingled with my hair. I will try it again on a bigger lock to see what happens. I will do this in a part of my hair that doesn't grow long anyway so I won't have damage in the length.

I am still not sure what I am going to do with my hair. I might dye it brown, that can be done with henna/indigo, or maybe back in my own color with regular dye, but that might be a bit harder.
The reason might be stupid: my boyfriend doesn't like my current color and saw pictures of me with brown hair and he really liked that. He claims my hair is orange haha

My hennaed hair is not that dark, can it be turned dark blonde with indigo? Or if not, light brown?