What color res?

What color buckets would be okay for my dwc reservoir? I know black is best and I had used them in the past but my hydro shop is a distance and I live next to a hardware store and they have everything besides black and I don't want to use a tub.

I found that with buckets very few are lightproof. Black of course is best, then find a metallic color like silver. The color pigments that are used to make rainbow colors allow for color but also are very see through. The best and most readily available are the silver lowes buckets.