Beer, or whisky... You are about a month late....
If ya mean "colors", Orange & White work for me.
LOL

Seriously though,Black & darker colors like Brown & Tan go with Green. Consider "camouflage" & the "tacti"cool"look.... { Not forgetting that the "Black & Tans" were against the Orangemen long ago & people suffered & died.

}
Otherwise, depending on the color you are using be it a darker green or a lighter green. Perhap you could use a "color chart" like they have at paint stores to get an idea of what YOU & the ones ya want to make this stuff for, would like as a "contrasting, "semi- contrasting"or "blending" type color scheme.
G'luck!
& I hope ya appreciated the humor. I do/did. LOL