I personally think light blue walls could lend themselves to a bohemian look really well! It will be unexpected and chic!
I advise to keep the decor neutral like creams and mixed metals or wood. Nothing too shiny. Incorporate blue and white in China pieces like we used in this Bohemian Room Makeover. This will bring a really cool global aesthetic to your room that adds a cool vibe to the boho flair.
Also, play around with different shades of blue! Using dark blue and white can really bring in an awesome bohemian feel that would work perfectly with your walls!