How do I make the groom look like he's part of the bridal party?

I'm not sure how to make my groom look like part of the bridal party. Im having an evening fall wedding that is formal. My colors were going to be espresso and pale yellow. He insisted on having green since it's his favorite color. So I took out the yellow and put in celadon (light green). My bridesmaids are in espresso with celadon ties and i wanted the groom and groomsmen in black tuxes with the celadon ties. Now my groom is insisting on wearing an all black and white tux. My dress isn't even white, it's champagne. I just need to know how to coordinate everything coz we won't even match.