wrong colors if you playback UHD blu ray with HDR on a non HDR compliant display?

[peterraes]

At a projektor shoot out 4K HDR and non HDR projektors i asked the question "what if you dont want HDR ,and you want to view the discs on a non HDR display"?
The answer was (by professional ISF certified dealers) that you basically end up with the wrong colors and there is no way to correct this!
Annyone else here anny experience with this i would gladly hear about,thx
Plz dont ask why i dont want HDR ,i seen it and the negatives outweighs the positive,just to much to explain here again...had sleepless nights about it,i'll let it rest!