Purple skies. It sometimes appears near hurricanes and it has appeared near Hurricane Delta, too.
Accuweather analyzed the color of skies /https://www.accuweather.com/en/hurricane/why-does-the-sky-turn-purple-after-a-hurricane/829477/ and gives answers, why skies can be purple after transition of hurricanes.
Main answers are - the humidity, right angle, evening hours and ultraviolet spectrum.
"If you have the right angle, especially in the evening hours, the pink hue that is superimposed with the dark blue sky produces a purple. This is often the case if you have low ceilings of stratocumulus clouds overhead in the eastern sky and clearing in the west." Accuweather said.
Significant amount of vapor particles in the air then should rarely cause purple skies during the sunset after hurricanes.
The effects of the untraditional colors of skies are sometimes charming, but for someone it should seems scarry. Depends on the angle of view!