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James "Jamie” Dimon, JP Morgan Chase & Co.

Institutional Investor's CEO of the Year for 2011 and 2012 may not feel in control these days, given his bank’s huge trading loss on a risky bet and the ensuing fallout, but he always looks like he is. Named one of the 100 Most Influential People of 2011 by Time magazine, Dimon, 56, sets the banking style bar with his signature blue suit, white shirt and blue tie. (He does change it up with the occasional gray suit, magenta tie and black cuff links.)

“He’s spot on,” says Michelle T. Sterling, founder and principal image consultant of Global Image Group in New York. “He looks distinguished, his colors go well with his personal coloring, and his suits fit impeccably. His ties have strong color, which denotes a strong personality, and his cuff links suggest refinement.”

Dimon should look refined; he earned $23 million in 2011, according to The New York Times.

Photo: Amanda Gordon | Bloomberg | Getty Images