What colors would be perfect to wear to a fall wedding?

My cousin and his fiance are getting married in Michigan this September. It's going to be a formal wedding at a Vineyard. The colors are hunter green, cream/ivory, and maroon or burgundy. For the rehearsal dinner I was thinking a cocktail dress in turquoise, deep or burnt red. For the actual wedding perhaps a plum or a Merlot color. What do you all think? If there are any other colors I am open to suggestions. Thank you in advance.