Here's how you could express it:
* "Ka wahine me ka lauoho melemele" - This literally translates to "the woman with yellow hair."
* "Ka wahine maka'ā" - This means "the fair-skinned woman," which could also convey the idea of "blondie."
Remember that Hawaiian culture often focuses on inner beauty and character rather than physical attributes, so the specific way you choose to describe someone would depend on the context and your relationship with them.