Ditching the highlights in favour of dye?

[ArseyTussle]

Have mousey hair, short, currently highlighted. Maybe I just need more blonde, but I'm not convinced highlights work well with short hair (kind of longish pixie idea). Considering getting it dyed to something approaching my own colour but I'm wondering whether I'd look drab as mousey isn't really a colour.

I'm a clear winter, for those of the HOC persuasion. Cool toned pinky skin, turquoisey eyes. I'm late 40s so NEED a flattering colour.