No doubt. But this isn’t a washed-out photo of a dress. The claim seems to be that sunlight makes a dark-brown shirt and even darker pants looks like a khaki shirt and even lighter pants. Never mind the fact that a shooter taking aim for the head shot would not be in the sunlight...
If you remember the original dress photo imbroglio, there was only one photo of the dress. Some people looked at it and saw a white dress with gold accents, others saw a blue dress with black accents. At the time, there was a lot of discussion about the underlying phenomena, the upshot being that different people experience colors in slightly different ways. Sometimes, probably usually, it's not significant. Other times it is.
About twenty years ago, I was standing in line at a C-store when someone in the near gas lane drove off without paying. The cashier called the cops, who showed up before I could pay and leave, so I and a few other customers got to describe the car that just sped off. I thought it was a light metallic blue Maxima (of the "4 door sports car" early '90s generation). Someone thought it was a BMW. Someone else thought an Accord.While I thought it was blue, a couple of the other witnesses said it was silver. Someone said it was white. Someone thought it was gold. And the car couldn't have been more than 25 feet away.