I have a tuxedo/suit dilemma - i need 05er input! (it's long, but I'm stressing)

So, FH and I are really excited about his suit- it's a sort of olive green/brownish color. We didn't want black for an outdoor summer wedding - and this is a perfect blend of formal but summery and different.

For the groomsmen - Heres the issue. FH says they all have suits that are tan, olive or brown. Clearly, none of them will match if we let them wear their own suits. Please keep in mind - I am NOT a compulsive person with matching, I don't feel the need to coordinate every aspect of the wedding. We are making great efforts to have this wedding be NOT black-tie, NOT what you would expect from a saturday night wedding...but I am stuck on this one. I don't care about what I 'should' do (which is make them all rent matching tuxedos) because I am trying to be practical and open minded. I am totally torn.

If all the girls are in matching dreses, do you think it will look 'off' to have the guys in coordinating (all the same tone, but not matching) suits?

I'm so confused at this point.

Part 2: If I was to 'make' them match - do you think it would look bad to have FH in Green, and his groomsmen in black? Or, qould it look better to have them all in olive colored suit like him?