Agreed. I have a red duffle sac that I never carried until this week and was surprised at how nicely it went with my outfits. Besides if you have lots of black or white in your wardrobe it adds a bit of punch to what you're wearing while still being coordinated.
I have the black signature with nickel hardware and love it. But, since it is not a super expensive bag, this would be a great way to add a little color! If it were a very expensive bag I would go for a more neutral color, like black.