Mother of groom/bride wear

Whatever color she wants. She doesn't need to match your decor.

She can wear any color she wants. The mothers don't need to match your wedding colors. I would tell her to just pick something she loves.

View Quoted Comment I've tried, but she thinks she'll choose something that'll clash. She tried on a beautiful charcoal gray dress, and I loved it. But she didnt because it "doesnt fit with my colors".

She can wear whatever she wants! She doesn’t have to match your colors.
My MIL is wearing a green dress to our burgundy gray and blush wedding. My stepmom is wearing a champagne color dress and I have no idea what my mom is wearing.

I have the same wedding color palette as you! My bridesmaids will be in burgundy and blush, and we have burgundy and rose gold decor. My accessories will be rose gold. My mom picked out a dress that's a bit darker than champagne. The color it was listed as was "mocha," but it's not dark enough to be brown. It complements the color palette well enough without matching my bridesmaids too much.