I did this with one of my colleagues kind of! She already ad ombré but wanted to darken the roots and tone the ombré so in that instance I applied the root colour to where the ombré started making sure to not cause any harsh lines and keeping it quite smudgy using my brush vertically if that makes sense we then applied a toner over the already ombre'd ends.
For you I would imagine you could do similar but taken the colour further down, wash, rough dry, then usual ombré?
For you I would imagine you could do similar but taken the colour further down, wash, rough dry, then usual ombré?