Weddingbee boards

Hi Hive,

I am in the process of deciding on how everything will look at the reception and I need your help.  I can't decide on how to coordinate the table linens, napkins, and chair cushions, with the flowers and to the overall look that I envision for the wedding.  Please help.  :)

Background:  The wedding is in June and our venue is modern and has a lot of glass and windows as well as brightly colored carpet (that are a prairie motif) for the cocktail area.  The reception room itself will have no windows...it's your standard room with chandeliers.  The flowers are going to be soft whites and bold marigold/yellow with some green accents in between - something light, fresh, airy, and summery.  Our bridesmaid dresses are eggplant so that is why we decided to go with eggplant napkins...we will also be having purple wall lighting so I want to keep the tables light and clean.

My biggest problem is figuring out the linens.  I originally wanted champagne tablecloths and chair cushions (gold chivari chairs) and eggplant napkins.  But as I browse through more and more pictures, I'm noticing everyone with:

-ivory tablecloths, ivory napkins, ivory chair cushions OR -champagne tablecloths, ivory napkins, and ivory cushions

Can anyone tell me if there is a "rule" to matching the colors of table linens?  (This would carry over to what I would do in the cocktail area as well.  As of now, all table linens -placecard table, guestbook table, gift table, cocktail rounds are all champagne).

How do I break up this color scheme gently?

thank you!