@ocean90 it has too low contrast, hardly noted.
I agree on removing the underline.

The GlotPress title is wrapped in a <h1>, maybe should be removed too?

Below are a few possible navbar solutions.

These examples have the Projects as the .current item, and the Profile is the :hover/:focus status.

1. The current PR status
   

2. The @ocean90 suggestion on this comment
   

3. A third option, using the below box-shadow but with higher contrast on .current and using the glotpress --gp-color-primary variations.
   

Please give feedback.

In my opinion, the third option is the best: it is subtle, but it has more contrast than if you use gray or white.

@ocean90 As I've mentioned above, the left and right colors show different status, on the left is a primary color to show the current status, and on the right I've placed a primary-color-200 to differentiate on hover on the current item.
Having a slight lighter color on hover allows is to have an hover effect also on current item.

@ocean90 and @amieiro I've changed to the option 3 in 7b57892

Thanks for fixing the loose ends :)