Navigation Bar Background Issue

The navigation bar should have a navy background when you scroll the page similar to other pages on the website, but I don’t know how to have it on the home page. Other pages already have this navy background.

https://preview.webflow.com/preview/sikkitik?utm_medium=preview_link&utm_source=dashboard&utm_content=sikkitik&preview=9219a8790afa92726880aee9a87fa352&mode=preview

Appears to be working