My house is white and shutters are maroon. I want to paint front door a color that will stand out…any ideas?

We had new dry wall put on and after we primed it there was dark streaks in different areas on the ceiling. Repriming didn’t help. Can you please help with this?

I live on the gulf coast where humidity is high. I stained my fiberglass door with Zar stain and sealed with Spar Urethane. It looked great. Over the winter the door was covered with mold. I had to remove the urethane and restain. Now I’m afraid to put more urethane