Need help in changing Bootstrap navbar colors

Hi all! I’m currently doing the Personal Portfolio Challenge and I’m kinda fixated on changing my navbar colors.

So far, this is what I have.

As you can see, I am trying to override the current colors of the navbar-inverse class by creating a custom class, navbar-custom. However, I was only able to change the background of the navbar, and not the color of the links. My plan is to make the links black, and the highlighted link have an orange text and a black background.

Any help would be much appreciated. Thanks!