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Nicole Kidman at the 2011 CMT Music Awards on June 8, 2011 in Nashville, Tennessee.
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Karen Elson at the Cinema Society & Coach screening of "Source Code" at the Crosby Street Hotel on March 31, 2011 in New York City.
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Marcia Cross at the Justfabulous Launch Party in West Hollywood on April 5, 2011.
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Christina Hendricks at the opening of Vivienne Westwood Los Angeles on March 30, 2011.
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Amy Adams at the 83rd Annual Academy Awards at the Kodak Theatre in Hollywood, CA on February 27, 2011.
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Scarlett Johansson at the Bloomberg & Vanity Fair cocktail party in Washington, D.C. on April 30, 2011.
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Julia Roberts at the premiere of "Charlie Wilson's War" in Los Angeles, CA on December 10, 2007.
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Hayden Panettiere at HAVEN360, Premiere.com and Roadside Attractions' cocktail party to celebrate the Academy Award-nominated documentary "The Cove" at the Andaz Hotel in West Hollywood on March 3, 2010.
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Raquel Welch at the gala opening of the Casino Clubat The Greenbrier in White Sulpher Springs, WV on July 2, 2010.
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Cheryl Cole at Madame Tussauds in London on October 20, 2010.
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Rihanna at the 2011 Billboard Music Awards at the MGM Grand Hotel & Casino in Las Vegas, Nevada on May 22, 2011.
Reading Suggestions from SheKnows
It’s true that only two percent of the population are natural redheads, but that doesn’t mean more women can’t enjoy this vibrant, energetic, head-turning hue. You just need to know how to pick the perfect shade of auburn, magenta, strawberry-blonde or orange-red for your skintone (learn how in our article on Red Hair Color and Skintone). See which celebrites get red right.
NICOLE KIDMAN
Hair color: Honey copper
Skintone: Light
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Undertones: Warm
Why it works: Kidman's hair moves between strawberry blonde and a more vibrant honey copper, which both compliment fair skin tones. Her trick is using warm red hues, which won't wash out her light, golden skintone.
The science: Read about it in Red Hair Color for Your Skintone.
Karen Elson
Hair Color: Subdued scarlet
Skintone: Light
Undertones: Cool
Why it works: Elson tends to stick with a vibrant red that picks up the bright undertones in her skin, just as Nikki Ferrara of New York's Sally Hershberger Salon suggests.
The science: Read about it in Red Hair Color for Your Skintone.
Marcia Cross
Hair color: Fiery Sienna
Skintone: Light
Undertones: Cool
Why it works: A bright, cool shade like this one complements Cross's light skin instead of making her look too pale.
The science: Read about it in Red Hair Color for Your Skintone.
CHRISTINA HENDRICKS
Hair color: Fire-engine red
Skintone: Light
Undertones: Cool
Why this works: Hendricks's color suits her so well because it picks up the rosy tones in her skin, giving her the confident radiance she is known for.
The science: Read about it in Red Hair Color for Your Skintone.
Amy Adams
Hair color: Strawberry blonde
Skintone: Pale warm
Why this works: Strawberry blonde is the perfect color for fair skin, because it complements the skintone without making it look too pale.
The science: Read about it in Red Hair Color for Your Skintone.
Scarlett Johansson
Hair color: Burnished copper
Skin tone: Medium golden
Undertones: Warm
Why it works: The pink tones in Johansson's skin can handle this sophistocated, deeper shade of red.
The science: Read about it in Red Hair Color for Your Skintone.
Julianne Moore
Hair color: Burn Auburn
Skintone: Light golden
Undertones: Warm
Why it works: Sometimes, the best hair color is the one that looks the most natural. Here, Moore's auburn hue contains plenty of brown, making the color look especially believable, and stunning.
The science: Read about it in Red Hair Color for Your Skintone.
Julia Roberts
Hair color: Golden copper
Skintone: Medium golden
Undertones: Warm
Why this works: Roberts' red hair picks up the warm tones in her face to perfectly complement her skin. A brown-based copper hue like this one gives depth and longevity, according to Kelly Van Gogh, of Kelly Van Gogh Hair Color, in our article Red Hair Color for Your Skintone.
Hayden Panetierre
Hair color: Russet
Skintone: Medium
Undertones: Cool
Why it works: Brown-based pigments tend to look very natural, and Panettiere's medium skintone balances well with this darker color.
The science: Read about it in Red Hair Color for Your Skintone.
Raquel Welch
Hair color: Fiery honey
Skintone: Medium
Undertones: Warm
Why it works: Welch's golden red hair color picks up the warm tones in her skin.
The science: Read about it in Red Hair Color for Your Skintone.
Cheryl Cole
Hair color: Ruby Cabernet
Skintone: Dark golden
Undertones: Cool
Why it works: Cole's rich skintone responds well to saturated hues like this deep red.
The science: Read about it in Red Hair Color for Your Skintone.
Rihanna
Hair color: Pure crimson
Skintone: Dark golden
Undertones: Warm
Why it works: Rihanna's bold, bright red color balances with her dark skin so that both shades complement each other.
The science: Read about it in Red Hair Color for Your Skintone.
