Human eyes respond best to two things: contrast and movement.
So if you want to be seen, wear contrasting colors or move a lot. For best results, do both.
When I go for a jog, I wear a bright shirt and dark shorts. By “bright” I mean neon yellow or a bright blue or bright red. I run on the side of the road because there are no sidewalks. So I want cars to see me, because I don’t want to be hit.
I want to be seen.
Really though, I don’t care about being seen. I want cars not to hit me. That’s my goal. But the only way I know to avoid that if I am on the road is to do my best to be seen by the drivers.
So I wear bright colors. Colors that contrast not only with the other part of my clothes, but that also contrast with the surroundings.
For example, I was driving along my running route a while back and just missed a jogger. He was wearing a dark green shirt and dark shorts. His outfit did not contrast with itself. Plus it did not contrast with the surroundings. This was in Michigan. The side of the road was grass and trees. Things that are mainly green. And the trees provide shade, which means shadows. So it’s a dark green. The guy might as well have been wearing camouflage. At least he was moving so he caught our attention.
Please, dress to be seen if you’re jogging along the road.
The other example had to do with two women who were on a different section of my jogging route, but they were walking. So there was not much movement. And they were wearing white and tan clothes. That did not provide much contrast with their white skin and dirt road. You can wear a white shirt to provide contrast if your skin is like Manute Bol’s, but in general a bright color is more visible than white is.
I was driving to work, going about 50 mph like I usually do, when suddenly I see arms waving at me from the road. So I swerved and braked, and ended up going past these women closer and faster than I would have liked to. I would have been annoyed if a car went by me like that while I was jogging.
At least they were walking facing traffic so they could see that the drivers couldn’t see them. And that’s how they knew I might hit them. So the lady closer to my approaching vehicle raised her arms at me in annoyance. I didn’t see her face because I was concentrating on trying not to injure them, but her body language seemed to be conveying the idea of “what are you doing? why are you barreling down the road so close to us? give us some room, crazy driver!”
And her act of extending her arms (more out to the side) provided the movement that the human eye needed. Since there was no contrast in their coloring and little movement, I didn’t see them until then.
Runners/joggers/walkers : please do yourself a favor and wear bright colors. If your outfit consists only of white, black, gray, or brown, you are headed for trouble with traffic. Make sure you can see the cars because they might not see you.
And there is no creature hidden from His sight, but all things are open and laid bare to the eyes of Him with whom we have to do.