The new mom, who'd been sporting a blond 'do for a while now, showed off her chin-length brunet bob in Santa Monica last week, according to E! News.
"The Client List" alum, 35, opted for a an easy, chic look since she welcomed her daughter Autumn in November.
Hewitt also wore two sweet necklaces, one bearing Autumn's name and the other with her "Client List" costar-turned-husband Brian Hallisay's first name.
In April, the actress had grown out the bangs she sported when she first confirmed her pregnancy. She was still blond when she stopped by "
"She's fantastic," Hewitt said of her baby girl. "She's sleeping better now, not so much in the beginning, which was a little rough. But, she's a great sleeper now."
The newly minted designer also talked about her super-secret marriage to her costar, which happened five days before their daughter was born.
"It was just the two of us and then we went to Bed, Bath and Beyond because that's what married people do," Hewitt said. "It was really sweet and he's an awesome, incredible father and a great husband and I just feel really lucky. Yeah, it's awesome."