Excuse Moi' doesn't need a color polish under it. For a glitter this is very opaque after a few coats. I did choose however to use Sally Hansen Nail Salon Choco-Latte on my nails before adding Excuse Moi'.
You might wonder why I included this first blurry picture but look close at the nail on the right this was the best shot of what I think is the true color. It was a yucky day outside and I just could not get the sparkle on camera or the best color except for that one shot you see on top.