Once upon a time, an olive, tan or dark complexion meant you stayed in your designated lane of brownish or reddish highlights. If you've long wanted to venture beyond familiar shades and into *gasp* blonde territory, highlights are your new best friend.
The good news is dark hair actually offers the perfect backdrop for high-contrast blonde highlights, in shades such as light ash, beige or honey. Keeping the roots dark, confer with your stylist over the shade you want to achieve. This should take into consideration your natural hair, eye and brow colours, as well as where your skin tone sits on a spectrum of warm to cool. You might enlist a skin specialist (or, hey, the trusty internet) to clarify where your complexion lies.