Often depends on your surroundings, the season, etc., but any of the neon/safety/hi viz colors, whether it be green, yellow or orange is usually going to be highly visible.
You said "all conditions", though, so blue. It's not often seen in nature. Royal and electric blue are more obvious choices, but baby/sky blue actually stands out exceptionally well without being a bright color.
Frankly, visibility is not something I give much thought to, as I don't go around randomly dropping stuff, or have any trouble finding it when I do drop something.
Seems like a pretty overblown issue to me, more of a "what if" than anything.
I started pursuing outdoor activities again about 12yrs ago. Hiking, backpacking, rock climbing, mountain biking, and a little tame kayaking. I'm forgetful, and tend to misplace things, but after >100 day and night hikes, 4-500 nights in the woods, and dozens upon dozens of climbs and bike rides(2-3x/week when into them), I've lost a pair of sunglasses that were on top of my cap when bushwhacking, and a little aluminum valve stem cap that got left on the ground after fixing a blowout on my mountain bike. That's it.
The exceptions I make for bright colors are my rain jackets(rain gear being wearable shelter), for the hypothetical, but entirely feasible, rescue scenario. I use an orange one in the East, and an electric blue one out West.
You said "all conditions", though, so blue. It's not often seen in nature. Royal and electric blue are more obvious choices, but baby/sky blue actually stands out exceptionally well without being a bright color.
Frankly, visibility is not something I give much thought to, as I don't go around randomly dropping stuff, or have any trouble finding it when I do drop something.
Seems like a pretty overblown issue to me, more of a "what if" than anything.
I started pursuing outdoor activities again about 12yrs ago. Hiking, backpacking, rock climbing, mountain biking, and a little tame kayaking. I'm forgetful, and tend to misplace things, but after >100 day and night hikes, 4-500 nights in the woods, and dozens upon dozens of climbs and bike rides(2-3x/week when into them), I've lost a pair of sunglasses that were on top of my cap when bushwhacking, and a little aluminum valve stem cap that got left on the ground after fixing a blowout on my mountain bike. That's it.
The exceptions I make for bright colors are my rain jackets(rain gear being wearable shelter), for the hypothetical, but entirely feasible, rescue scenario. I use an orange one in the East, and an electric blue one out West.