graphics card – New monitor looks “washed out” or “milky”

I recently got a new monitor and installed it, but it looks like washed out (black looks grey and too bright), i tried calibrating the brightness and contrast with the windows tool and with AMD display settings but it still washed out. The monitor is a LG 20MK400H led 20″.
Here’s a picture of how it looks:

The monitor on the left is connected through VGA, and the one on the right (the new one) is connected through HDMI.
My GPU is a Vega 8 from a ryzen 3 3200g with up to date drivers.
I found some posts with the same problem and they said to change the pixel format to ycbcr, but in my AMD display settings the only pixel formats available are RGB, as shown in this image:
Thanks in advance.