Washington, 36, headed a list that included Academy Award-winner Jennifer Lawrence, singer-songwriter Solange Knowles and actresses Jenna Dewan-Tatum and Kate Bosworth.
“I don’t wear a lot of pants,” Washington said in a statement announcing the honor. “When I go somewhere I want to know I’m going to be comfortable and I’m dressed for the event.”
People magazine Executive Editor Elizabeth Sporkin praised Washington for her fashion sense.
“There has been a trend this year in lady-like fashion and I think she is almost single-handedly responsible for it,” Sporkin said in an interview.
Although Washington nabbed the best dressed title, Lawrence, the winner of this year’s best actress Oscar for “Silver Linings Playbook,” was cited as having the best high fashion style, and actress Jessica Chastain, the star of 2012’s “Zero Dark Thirty” had the best red carpet style, according to People.
Solange Knowles got top marks for style risk-taking and confidence.
“She really does push the envelope,” said Sporkin. “No one else would even think of putting together the looks she wears. She always pulls it off.”
“Avatar” actress Zoe Saldana had the best denim style and actress Lily Collins was named the best for up-and-coming style.
Actress Emma Stone, the star of “The Amazing Spider-Man” and “The Help,” won praise for her classic style and timeless looks and television host Nicole Richie was named best in trend-setting style. READ MORE