Not that I've seen. Different brands may be different colors though. I'll check the 1/2 bag that I have left at home for brand and color tonight and get back to you though.
I haven't seen much variation in color between brands (4-5). Also, in my experience the sand will turn a darker brown or green depending on your light load.
That's what I was curious about. I see tank pics that people have where it looks white in the tank. I went to the pool store yesterday and it looked tan/natural.