Why HDR colors look bad or washed out?

Why do HDR colors look bad or washed out?

1. Make sure your display supports HDR.
   1. Go into Settings > System > Display and select the appropriate display in the Rearrange your displays section.
   2. Make sure Use HDR is turned on in the Windows HD Color section.
2. Check your GPU driver settings and make sure output color depth is set to 10/12-bit.
   1. For Nvidia GPU open Nvidia Control Panel, select Change resolution tab and check Output color depth.
   2. For AMD GPU open AMD Radeon Software, select Display tab and check Color Depth.
   3. If only 8-bit is available for output color depth, your system does not support HDR correctly and colors may be distorted.
3.  Make sure that in the settings of the display itself HDR is also turned on and/or set correctly. It is best to use the display manual, where it should be described how to enable HDR. Depending on the display model:
   1. Enter the OSD settings.
   2. Go to Picture/Image/Color Adjusment/Color Mode settings.
   3. Turn on HDR mode.

See also this short video on how to set HDR correctly: https://youtu.be/sIUql9yWGpM?t=162