How to change color to full RGB (washed out colors)?

[Ketjow3]

Thanks for help, but it does not change antything in my screen. I mean colors are still washed out. And i will prefer open source drivers so I dont change it.
I tried this command:
xrandr --output <HDMI> --set "Broadcast RGB" "Full"
but have an error.
I tried gnome-color-manager but it shows only Color Profile Viewer.

I dont have any ideas more how to fix it :/