Inconsistency and invalid colors on beta site

There are some hovering colors in the profile page, different from each other and all are wrong (based on the original SO design system).

For example, The selected page should be orange but it seems dark in the saves page

It seems mixed-up with this state:

In the Activity tab on the other hand, things are different and still wrong:

_{👆 This behavior seems the same with the old-site logic but yet inconsistent with the design system}