If you are in spectator mode and are spectating a mob that tints your screen, when you die and respawn, your screen will keep that tint until you press F5 or exit the world.
The screenshots I took were of me spectating a creeper, but it works for all mobs that give you a screen tint.
Thank you for your report!
We're actually already tracking this issue at MC-46503, so we will resolve and link this ticket as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
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