I am red/green color blind. I have hunted since I was 12 and had no idea I had a problem until I joined the Navy in 1970. I have no problem seeing hunter orange at all and in fact am often the first to notice movement of game and people in the woods. I also have had a 35 year career as a "Electro/Mechanical" tech and I do a fair amont of electrical wiring on machines and have never had a problem getting wires crossed because of color. One rule, when in doubt, get the ohm meter out.