Since there's not much wool in the blend, I doubt you'd wind up with a nice deep color, even with acid dyes
, which are designed to work well with wool. Because it's basically plastic, acrylic won't take any sort of non-industrial dye, and even then, you'd probably only get a light to medium color (link)
. It can be tinted with products like Syn Tint
. Still, I think your best bet would be to acid-dye 100% wool yarn, which will give you bold, permanent color. Try looking on Google to see if you can find it cheaper online than you can locally, which might make you less cranky.