The New Girl

"Color to me equals power. You are the woman everyone notices in the room."

Jacket, $1,995, Skirt, $695, Shoes, $520, Bag, $995. Michael Kors; (866) 709-KORS.

"Today's woman has a lot more freedom when it comes to her clothes because the workplace has become more flexible."

Cropped Vest, Dress and Belt, prices upon request, Calvin Klein collection; (212) 292-9000.

"The boundaries between day and night are changing. A lot of pieces that were strictly evening, like sequins, are no more. Who doesn't love a little glamour in their workday?"

Dress, $1,521, Embellished Collar, price upon request, Peter Som at Bergdorf Goodman; (212) 753-7300.

"When you keep evolving, you never get stuck. It's very important to keep an open mind."

Jacket and Boots, prices upon request, Dress, $425, Pants, $395, Theyskens' Theory; theyskenstheory.com for information.

"There's nothing wrong with looking good and having a career. As a woman, you can look a bit more fashion forward but still be business appropriate."

Dress, $1,050, Thakoon at Barneys New York; (212) 826-8900.

"A bold print attracts attention and is perfect for a work environment—and it transitions into evening."

Jacket, $2,490, Top, $1,890, Pants, $990, Belt, price upon request, Carolina Herrera; (212) 249-6552, Shoes, $795, Jimmy Choo; jimmychoo.com.

"Twenty years ago, the executives of Silicon Valley threw away the rule book on corporate dressing. Now comfort is key. It's more conducive to being creative."

Blazer, $448, Top, $178, Pants, $248, Necklace, $98, Shoes, $378, Tommy Hilfiger; (212) 223-1824.

"Going to work has gotten more casual. You can wear just about anything, except that you still have to show authority and look strong."

Top, $285, Pants, $345, Shoes, $325, Bag, $245, Diane von Furstenberg; (646) 486-4800.

"There's enough diversity now to find out what's right for you, but the dress is still important."

Jacket, $1,195, Dress, $1,995, Shoes, $1,295, Donna Karan New York; (800) 231-0884, Rings, $800 each, Lynn Ban; barneys.com.

"It's OK to be an individual. What used to be uniform 10 to 15 years ago isn't mandated or necessary to be taken serious in the workplace."

Jacket, $2,490, Sweater, $1,590, Skirt, $1,490, Reed Krakoff; reedkrakoff.com.

Hair: Kenshin Asano for Oribe at L'Atelier NYC. Makeup: Cynthia Sobek for NARS Cosmetics at Art Department. Manicure: Casey Herman for Chanel at Kate Ryan Inc. Model: Katie Fogarty at Next Models.