I think that the moms should wear something that compliments the wedding colors. As one of the moms, you will be in lots of pictures. When my 2nd daughter got married (I'll be going through this with my 3rd daughter next year), the wedding color was a burgundy wine color. My dress was champagne colored, but the mother of the groom wore peach, and she had a daughter in the bridal party, it really wasn't pretty :( My youngest has pink as her main color, I think I'll be wearing silver, haven't gone shopping yet.