Walima Outfit for brother’s wedding

My brother is getting married and I’m in search for a walima outfit. I fell in love with this outfit, work, and design, but my issue is the color is not walima appropriate. The designer said they can change up the colors if I send them a color palette.

Can you guys give situations on what color scheme would look best on this outfit? I would like the kaam to remain in gold (I know people usually do silver for walima)