Re: HOT PINK/BLACK LEHNGA!
It doesn't have to be black with pink....
Brown and hot pink make a beautiful combo. Your fiance could wear a brown suit with a lighter brown shirt and a hot pink tie. You could wear a hot pink outfit with brown worked into it somehow (maybe through the embroidery and jewellery)
With white table linen and brown and pink table accessories to match that would be one hell of a statement when people walk in to your venue and see the colour scheme in all its glory!