Could this possibly be 54s to spades, hearts, or diamonds?

Hmm, doesn't seem to matter:

Code:
Board: 2s 3d Jh
Dead:  

	equity 	win 	tie 	      pots won 	pots tied	
Hand 0: 	28.504%  	25.12% 	03.39% 	        231023 	    31134.00   { J4o }
Hand 1: 	71.496%  	68.11% 	03.39% 	        626419 	    31134.00   { 99+, 33-22, AJs, KJs, QJs, J2s+, 5d4d, 5h4h, 5s4s, AJo, KJo, QJo, J7o+ }
Against that range for villain, we need at least JTs with the backdoor flush draw or QJo:

Code:
Hand 0: 	45.318%  	40.59% 	04.72% 	        360495 	    41946.00   { JTo }
Code:
Hand 0: 	47.885%  	43.38% 	04.51% 	         42942 	     4464.00   { JdTd }
Code:
Hand 0: 	52.999%  	48.64% 	04.35% 	        431979 	    38670.00   { QJo }