I am going to a wedding :) dress Ideas please?

my Moms bestfriend is getting married in Paris next weekend and I am so happy I get to go I mean its paris .. but I really wanna know what to wear they are very traditional people her fiance is french super sweet and her parents are well rich they are gonna have the most amazing wedding so I wanna look really cute and elegant without over powering the bride or being to flashy there color scheme is pink and orange its very pretty so any dress and outfits for paris Im gonna be there 5 days so yah .. Lots of Pictures please