IMO you want your tank to look as close as possible to your fishes natural environment they don't live on a disco dance floor why try to make your tank resemble one?
you can find normal sand in natural earth colors like white or tan at home-depot or local hardware stores they call it play sand or pool filter sand or order the expensive black tahitian moon sand but its pricy between 30 or 40 bucks for a 20lb bag i hate to say this but try petsmart also they usually have aquarium sand what size tank???