Wrap color of Fender bass strings?

[fatim]

Can anyone please help me sort out which
strings are which:

7150 pure nickel= yellow wrap?
7250 nickel plated steel = wrap ?
7350 stainless = wrap ?
8250 nickel plated = grey wrap?

I have a couple of old Fender ets and don´t
know what they are

[jasper383]

7150 yellow
7250 black for sure
7350s red
8250 ?
9050 green

[fatim]

Thank you jasper

Very helpful

The ones I have are red and are very old
and sounded quite "pure nickel" but are
obviously stainless

8250´s are grey I heard from a friend
(the ones they have on all the new
American Standrads)