11$ K6o push with 2.5BB left

[sloove]

Party Poker No-Limit Hold'em Tourney, Big Blind is t400 (6 handed) Hand History converter Courtesy of PokerZion.com

Button (t1280)
SB (t2490)
BB (t4590)
UTG (t3020)
Hero (t1000)
CO (t7620)

Preflop: Hero is MP with K[img]/images/graemlins/diamond.gif[/img], 6[img]/images/graemlins/club.gif[/img].
<font color="#666666">1 fold</font>, Hero calls [t1000] , <font color="#666666">1 fold</font>, Button calls [t1280] , <font color="#CC3333">SB raises to t1880</font>, <font color="#666666">1 fold</font>.

K-High seems good to me and BB is pretty tight. With 2.5BB there ain't gonna be to many hands better than K-High was my thought. Is this push correct?