Patur Aval Asur-
“???? is more of a normal word to describe green”
You’re again basing yourself on modern usage. ??? ???? is not green (see ??? ??? ?”? ????’ ???”? ???”? ??).
Ok, so there’s a ?????? if maybe an Acharon holds it’s green. That doesn’t carry weight against the Mesorah ??? ?????? ????? that ???? is blue, geonim, all (or almost all) Rishonim, scores of Acharonim, ????? ??????, ????? ?????, Philo and Josephus who himself saw the ???? ?????.
I wrote “Also the itself can be green or blue” I meant to write “Also the ?? itself can be green or blue” so obviously both are ???? ???.
???? ??? ???????? there’s the 2 latest ???? ??????? have allot
about this shaila and there’s an Igros Moshe that says ??? ???????? ?????? for Tefilin that’s ??? ???? where you don’t have another pair.
I think murex is a ???? so it’s not ???? ????? here.