I really want blue hair, I'd love midnight blue with aqua streaks!

I'm going to salon today, currently I'm dark blonde with light blonde highlights. I'm worried about not looking professional in my job, I'm a cfo & run a business, but it's ok to be creative right? I don't want to freak anyone out at work or business meetings with clients.

Maybe I could just do my usual blonde highlights with some aqua streaks like peek-a-boo? I'm not sure what I should do(?)