What kind of wedding? Is it a contemporary/modern wedding, or it is a traditional wedding, like Jewish or Indian?
I would suggest just a base and powder to give your skin a very soft look, then a little eyeliner in brown, an eyeshadow that just gives a blush of color (pink, perhaps), and then use a light shimmer under the arches of your eyebrows and to highlight your cheekbones. Less will always be more.
Also be sure to practice your makeup before, so no makeup surprises on the Big Day.