I think chartreuse and blaze orange are very easy to see. I have read that deer don't see orange well and red appears brown to them. Yet, people with normal vision seem to see them well. I have never used pink, but I shoot with a lot of guys who do, and their arrows show up quite well. I once read a magazine article with numerous pictures of animals taken with pink fletched arrows. These fletches showed up as prominent pink dots, even from a distance. For all the reasons stated, white is not a choice for my hunting arrows, but for targets, they are high on my list. Actually, most of my hunting arrows through the years have been subdued colors.