Here are a small handful of my favourites with smaller blades, you might get inspired by one...
All blades lengths include the ricasso, i.e. measured from tip to bolster.
case peanut. closed 2 13/16. blade 2 7/32.
queen peanut. closed 2 13/16. blade 2 3/16.
gec 25 barlow. closed 3. blade 2 1/8.
gec 33 conductor whittler. closed 3 5/16. blade 2 1/2. (to my mind, this offers you the smallest frame whilst remaining on the most upper end of your blade range. it's also a very beautiful and dignified looking pattern)
gec 68 white owl. closed 3 1/2. blade 2 1/2.
gec 61 half congress. closed 3 11/16. blade 2 5/32.
It's worth noting that almost all congress patterns will fit your specifications, it's the nature of the pattern to have that kind of handle to blade ratio. Being one of my favourite patterns, I have quite a few and none of them have a blade longer than 2 1/2 inches in length.
My personal recommendation would be a peanut. I carry a peanut in my uniform trousers for every shift and have never felt that I wanted for more blade. If however, you want to stay small but have more knife so to speak, the gec 25 pattern is offered in spear, clip, wharncliffe, sheepfoot and even (if you can find one!) drop point main blades.
I hope this helps the hunt,
Paul