I know Sahara beige is the recommended on for the tan
but except for that I don't know whats the most accurate for the yellow, red, blue, and the insignia
since its my first time cosplaying and was looking for some cheap options and found this two and was wondering if this would be 501st approved
Ammo pouch
https://www.etsy.com/listing/594048217/original-czech-yugoslavia-serbian-army
Pants
https://www.ebay.com/itm/403338021284?chn=ps&mkevt=1&mkcid=28