The first is to positively identify the intended target. Wearing some item of blaze orange clothing makes hunters easily identifiable to others. Blaze orange clothing is a requirement only for those on public lands, but it's a good idea for anyone hunting, especially deer hunters during the gun season. We lose one or more hunters each year who could have, and probably would be alive today if they'd been wearing blaze orange. The high visibility fabric has been used for more than 20 years in many states, and all have witnessed a visible reduction in hunting accidents of hunters being mistaken for game.
Some hunters resist blaze orange as a greater chance of being seen by deer.
Today we know that deer do have limited color vision, but not to the degree that something like a wild turkey has. The way most Texans hunt, from a blind or tripod stand, the deer's degree of color discernment is a moot issue, according to Rollins. It might mean the difference as to whether you have the chance to go hunting next year or not.