this is not an attempt to...

[seakayaker1]

fwiw - 3 black A&A bags and one Crumpler 6 million dollar brown bag.

I tend to like basic black.

 

[noisycheese]

I have about a 50/50 split between sand or tan bags (Domke & Billingham) for hellishly hot weather and dark color bags for cool weather and night time street photography.

When it gets up to +85F and hotter, I use my light colored bags to help keep my cameras & lenses from overheating.

 

[gb hill]

I have a blue one that I store my SLR's in. I never carry it anywhere. It's a large bag my wife bought me many years ago. My street bag is black.