No worries about posting in the wrong place.
Presently, your site is down for maintenance. If you're updating a plugin or something, that's normal. If not, you may need to FTP into the site and locate .maintenance and delete that file. It's usually about 30 bytes or so.
Below is an example from one of my own sites (Note: this is not the code for yours). You'll see how the color hex codes vary, compared to the code you provided above, which has all the same color.
If you edit your code and place it in Dashboard > PageLines > Site Options > Custom Code, you should be able to make the navbar the color you desire if that option isn't available in the NavBar options.
Are you trying to make the top part of the NavBar green or the entire thing green? The NavBar is designed to show 'depth' and make it stand out. You may want to swap over to the Nav Classic and use Simple CSS Lite (a free plugin in the Store) that would allow you to change the color of the menu quite easily.
Carl, in addition to the topic you
, you may want to check this: You'll find more code examples there.