I used to hunt with a guy who is red /green colorblind . He could not see red or fluro orange so I wore a black/blue woolen jacket when I was hunting with him , I figured getting shot was worse than alerting a deer . The first camo clothes were for the military , then duck hunters cottoned on to the idea , then deer stalkers and an industry was born . Now days for deer stalking I wear different camo on my pants , top and a broad brimmed hat of yet another camo . I believe getting rid of the human head shape is important when deer hunting . Fluro is not required in this country , I tie a few day glow streamers on my day pack and have a large piece of fluro cloth I throw over a nearby bush when I am sitting glassing the country , and tie it over any deer I am carrying out on my back .
Back on subject I have a lovely Whitney 5 point HB blanket which I would never cut up or dye , I shudder at the thought .
Wool blankets are no longer fashionable and can be found on the net at reasonable prices .
If you find a blanket you want to cut up ,First wash it in water as close to boiling you can get, this shrinks the fibers and makes the blanket more wind and water proof . also never wash hunting clothing in wash powder which has brighteners in it , this makes the clothes glow brightly in a deer or bird's vision .