So my boyfriend's friend is getting married in about 2 weeks and I have 3 different dresses in my closet but I saw a black dress that was absolutely perfect for the wedding. But I have heard that black at a wedding is bad luck and almost as rude as a guest wearing a white dress. I would be wearing accentuating jewelery to liven it up but I didn't know if it was acceptable or not!

Also....if black is a bad idea, I have a dark blue/navy dress that is lacey looking, not too short or tight, and has sleeves that come to about the elbow. Can I wear that with some flesh colored heels and jewelery?