Actually many of the '65 shades are lighter, or duller. Here are the shades identified as being printed in '65:
BRIGHT ROSE RED Early 1865
Pale rose red Early 1865
DULL RED Early 1865
Rose brown Early 1865
Pale rose brown Mid 1865
BROWN RED Mid 1865
PALE BROWN RED Late 1865
The rose brown shade is not a bright or bold shade, so it leaves only bright rose red and brown red as bright possibilities.
I would think that although the '65 cover doesn't have a stamp that is tied, it looks like the type of shade you'd see in '65-'66. '64 was a year of very bright shades with a lot of lake mixed in, and then until the grill shades came around, most of the shades were warmer, duller and lighter.
Either way, since it's dated '65, it can only be #65. All of the pinks were printed in August of '61, and they just didn't stick around the post offices or in someone's home until '65.
Here is my "Pale brown red", one of the '65's, and you'll see how it's also a pale, but not faded shade, ID'd by Mike McClung:

Your '65 doesn't come close to any of the other dull/pale '65 shades:
Pale rose brown:

Pale red rose:

Dull red:

So, by process of elimination, your '65 on cover could be pale brown red, but it really can't be done on email, since all screens are different (Ask Don about that one!).
The other stamp, it looks like it's just a faded stamp-- a lot of the faded ones look pink or pinkish, but without a date stamp showing '61 or early '62, you won't be able to get a cert saying it's pink anything.
Hope this is all helpful,
Ray