Raspberry Pi 3B+ washed out colors

Not exactly sure when I started noticing this but it's definitely been bugging me for quite some time already.

Currently running LE9.2 on a RPi3 3B+. When I'm browsing Kodi's interface, I don't notice the issue, but when watching movies/tv shows I can definitely notice an issue with the image colors. It's as if the colors were a bit washed out or solarized.

On movies, even top/bottom black borders look weird, as if they were less black as they should.

For instance these are the encoding settings of the latest contents I've been watching: AVC [email protected].

Any ideas on why this is happening and how to workaround the issue?

Cheers

This weekend I ran some tests with my rig and the regular TV box is doing the exact same thing on that HDMI port (HDMI2) that the RPi is usually connected to.

On the other end, the RPi works just fine when connected to the TV box HDMI port (HDMI1).

So, sorry for bothering you but it must be something with that particular HDMI port of the TV set...

But thanks anyways.

Cheers