I believe somewhere it says in Midnight Sun, Edward's point of view version of Twilight by Stephenie Meyer, that Edward liked it when she wore dark blue.
edward's favorite color on Bella is blue.
purple
She looks gorgeous in yellow.
Bella is a natural blonde, she dyed her hair red...personally I think it looks better and not just because I love red hair.
Ask yourself, "What color do I like?" Try to find whatever color looks best to you.
Black
yellow or orange
grey
Green
white
brown looks the best
There is no one color that is required or asked for in church. Wear something that looks like Spring and looks pretty.