Hello, yellow—celebrity style-setters are carrying bags in all shades of the cheery hue. "I'm a big fan of pops of color," says stylist Nicole Chavez. She liked the way her client Rachel Bilson paired a Mercuryduo bag with simple jeans and a T-shirt. "It's fun to incorporate through accessories, because [the hue] can be difficult to wear." She advises against wearing the shade with other primary colors: "It's really cute worn with patterns with hints of yellow in it." And don't forget to add a little sunshine. "I love yellow in spring and summer," she says. "It's warm outside and it's fun and flirty and young."

—Betony Toht

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