Your color scheme is an excellent starting point for planning all of the elements of your event.
An analogous color scheme is a color scheme using colors adjacent on the color wheel. A great example would be to use reds, purples and blues. Analogous color schemes are both unexpected as well as naturally easy on the eye.
Here are some fabulous examples of analogous color schemes.
REDS, ORANGES, YELLOWS-
Photo Source: Project Wedding
REDS(pinks),ORANGES (peaches), YELLOWS-
Photo Source: Wedding Bee
REDS, PURPLES, BLUES-
Photo Source: Wedding Aces