My grays are getting too orange for the rest of my hair, which is a deep, gorgeous wine red (Monsoon + Copperberry) with highlights (bleach). Some of my bleach highlights, as well as my grays, have become brassy orange. I know they will darken with repeated henna applications, and leaving henna on for many hours. Still, I am curious to know if I could get red tones by mixing beet root, or hibiscus powder, or red clay with my Monsoon so I don't have to use up so much henna. If not those relatively cheap options, would diprotic acid help add the rose tones (as opposed to orange tones)?