Naomi Watts touched down at LAX airport looking effortlessly stylish in a pair of blue printed pants. Up top she covered up in a black tee and a black leather jacket, then accessorized via a colorblock bag, another gray leather hobo bag, aviator sunglasses, and black t-strap sandals. Naomi's latest outfit can just as easily translate from the airport to the streets. When it gets chilly, just swap the sandals for booties and throw on a scarf for extra warmth.

Jessica Alba Totes a New Black and White Bag With Black Layers
Jessica Alba looked chic in her black-on-black layers in Santa Monica, but what really caught our eye was her new black and white colorblock bag. Jessica's oversize two-tone leather Chloé tote ($1,995) really popped against her black high-low dress, black leggings, and black Surface to Air caged sandals. The actress finished off her low-key look with celeb-approved Westward Leaning shades ($275), a simple pendant necklace, and a few bracelets. Re-create this monochromatic outfit with a few closet staples — black high-low dress, black leggings, and caged sandals — then reach for a black and white colorblock tote to really nail her downtown-cool style.

LFW: Olivia Palermo Colorblocks a Green Blazer With Yellow Jeans
For her latest front-row London Fashion Week look, Olivia Palermo went extra bold in an emerald-green blazer, yellow skinny jeans, and a two-tone Anya Hindmarch leather tote at the designer's Spring 2013 show. It's clear she's mastered the art of unexpected color pairings, as just hours earlier she showcased this equally amazing burnt orange and burgundy ensemble. Olivia's gray deep-v sweater and tortoise Ray-Bans balanced her bold separates, while her colorblock pumps and sparkling accessories injected the perfect amount of glamour. Style a green blazer with yellow denim and colorful pumps to channel Olivia's Fall-perfect duo for your next dinner date.

NYFW: Nicky Hilton Gets Leggy in Leather Shorts and a Printed Blouse
Some may be wary of melding black and yellow for fear of looking like a bumblebee, but Nicky Hilton's New York Fashion Week look made a serious case for the dynamic color combo. Nicky worked a full Diane von Furstenberg ensemble — black leather shorts ($475), a printed tie-neck blouse, and a colorblock bag — with embellished ankle-strap Brian Atwood pumps ($1,473) while attending shows at Lincoln Center. The blond beauty accessorized her eye-catching ensemble with an emerald cocktail ring and glistening diamond studs. Score Nicky's exact edgy bottoms and elegant pumps to work with a printed blouse for a glamorous night out with the girls.

Celeb It Bag Alert: Shop Our Favorite Two-Tone Bags à la Reese's Celine
Newly pregnant Reese Witherspoon was spotted exiting a friend's house in LA sporting an all-black ensemble consisting of a Rebecca Taylor dress, black cropped cardigan, beaded necklace, ballet flats, and oversized hexagonal shades. But what really made her outfit special, besides her baby bump, was that black-and-yellow Celine tote. Two-tone bags are super fresh at the moment, and while Reese's version is a few seasons old, you can still get the look via other styles and colors. Whether it's a clutch, crossbody, tote, or satchel, pick the two colors you love most, and get a bag that has them both! To get in on the two-tone trend, shop our favorites below.

