For me, my large backpack is camo, since, if I'm in the woods, it is to hunt. With that being said, I have a neon orange rain cover for it. The equipment I have inside of the pack is very bright to get attention if I should need it. Every thing is marked with at leased 2 colors of neon duct tape for increased contrast.

For urban EDC/preparedness tools, I would rather prefer not to be constantly scrutinized and hassled. So, the items are rather subdued in color or the items they are carried in are some none bright color.