The vice president's wife, Jill Biden, wore a gray coat and dress by American designer Lela Rose.
Mrs. Obama has worn Browne's designs for other occasions, including a gray dress with black lace overlay to one of the presidential debates last fall, and she honored him last summer at the Smithsonian's Cooper-Hewitt National Design Awards for his contribution to fashion.
Browne made his name in modern — very modern — menswear, but he launched womenswear in 2011. He was in Paris on Monday, just finishing previews for his next menswear collection. The idea to use the tie fabric came to him because he was indeed designing these men's clothes at the same time, he explained.
"I wanted 'tailored' for her. For me, she stands for strength and confidence, and that's what I wanted to design for her," he said.
Simon Collins, dean of the school of fashion at Parsons The New School for Design in New York, said the Obamas dressed in their typical fashion: one that shows pride in their appearance.
"They are a stylish couple and their children look fabulous. Too many people get dressed in the dark," he said. "They show it's good to dress up, take pride in how you look. ... It's a wonderful example for America and the rest of the world."
He also noted that the Obamas seem to understand that the fashion industry is a driving force in the U.S. economy and that its lobby is a powerful one. They don't treat fashion frivolously, he observed.
The first lady "is so supportive of so many American designers," Browne noted.
But Collins said he was a bit surprised the public doesn't pay much attention to the president's wardrobe. He joked that Obama should perhaps try one of Browne's signature shrunken suits — the ones that show a man's ankles.
At the end of the Inaugural festivities, Mrs. Obama's outfit and accompanying accessories will go to the National Archives.
Samantha Critchell tweets fashion at (at)AP_Fashion, and can be reached on Twitter at (at)Sam_Critchell.