My older dogs have "official colors" but I haven't really decided on a color for the puppy.
Em - bright, royal purple
Bayleigh - hot pink
Pirate - hunter orange
I'm thinking like a pastel green for Penny but I don't really know. lol
With that said, I love bright colors on my dogs. This goes for all of them, red, blue, yellow, green, any colors. I don't tend to pick dark colors for them at all. For leather, I like the more natural colors, black, burgundy, brown, etc.