Need Help!!!

Hi,I'm getting married in august and I need help my colors are Aqua and sliver but I'm having trouble finding aqua supplies.I got my dress at david's bridal and I was looking at the colors there for my bridemaid dresses and they have pool and oasis colors that I like.Well now my mother-in-law to be is going to make the bridemaids dresses and flower girls too but we are having trouble finding fabric and ribbons that's aqua,pool or oasis.MY maidofhonor is going to wear a lighter color and the other girl are wearing a darker color. Can anyone help me?