Nails were pale, powdery blue at Chanel Cruise 2011, shown on May 11 in St. Tropez, France. Courtesy Photo

Chanel has a serious case of the blues. Blue nails, that is.

They debuted a bright turquoise nail polish called Nail Vernis in Nouvelle Vague for Summer 2010. And at yesterday's Cruise Collection in St. Tropez, designer Karl Lagerfeld and his beauty tour de force Peter Philips sent models down the runway with a powder blue shade on their finger tips.

According the Chanel, the polish is "a new pastel baby blue shade" that's not yet available (meaning it will be!).

It was created to accent the amber, absinthe and mint green, sky and navy blue and bright pink prints shown in the collection. The polish appears to contain lots of white (almost like blue White-Out), a tone that flatters pale and dark skin alike, helping lackluster skin look rosier and tanner -- which is exactly what many women want while packing for a warm vacation in the middle of winter.

"Effortless, natural beauty, relaxed girls who are enjoying their holidays. That was the main idea behind the look for this show," said Philips, global creative director of Chanel Makeup, who kept the face natural and healthy with defined lashes and brows -- thanks to Inimitable Waterproof Mascara in Black and Le Crayon Sourcils Precision Brow Definer, respectively -- and soft coral lips courtesy of Soin Tendre Lèvres Hydra-Treatment Lip Care SPF 15 and new lipstick pencils that are not yet available.

Chanel most recently spun the makeup and nail polish from December's Paris-Shanghai Metiers d'Art fashion show into a beauty collection called Noir et Or, which juxtaposes matte and shiny gold and black shades.

The blockbuster Nail Vernis' in mint green Jade and taupy-gray Particulaire sprung from Chanel's Fall 2009 and Spring 2010 runways, respectively, so we wouldn't be surprised to see this pretty periwinkle be next winter's nail polish craze.

Holiday blues, anyone?

The pastel blue nails at Chanel Cruise 2011. Courtesy Photo