The U.S. dollar index decreased on Wednesday as investors were digesting the latest Federal Reserve statement.

The dollar index, which tracks the greenback against six major peers, was down 0.15 percent at 92.314 in late trading.

The U.S. central bank kept the interest rates unchanged on Wednesday after concluding its two-day monetary policy meeting, in line with market expectations.

The statement released after the meeting, however, showed Fed's confidence over inflation, acknowledging that core inflation rate has moved close to the central bank's 2-percent target.

Analysts said Fed's latest remarks let the door open for more rate hikes later this year.

In late New York trading, the euro rose to 1.2005 dollars from 1.1996 dollars in the previous session, and the British pound increased to 1.3624 dollars from 1.3618 U.S. dollars in the previous session. The Australian dollar was up to 0.7524 dollar from 0.7491 dollar.

The U.S. dollar bought 109.68 Japanese yen, lower than 109.80 Japanese yen of the previous session. The U.S. dollar was down to 0.9953 Swiss franc from 0.9964 Swiss franc, and it fell to 1.2830 Canadian dollars from 1.2848 Canadian dollars.