Graphic yellow lids at Z Spoke by Zac Posen. Photo: Getty Images

Will we be trading our trusty taupe eye shadow for bright yellow this spring? If top designers have their way, the answer is a resounding "yes, honey."

At New York Fashion Week, sunny shadows have made us squint at Zac Posen, Peter Som and Doo.Ri, and we're only on day four.

The man behind two of these looks is makeup artist Tom Pecheux, who drew a banana-shaped arch over models' lids at Peter Som as a modern ode to the 1960s' staple flicked eyeliner that rounded out -- literally -- the designer's mod minis and shift dresses. Later the same day, Pecheux used a pop of marigold shadow to add life to Doo.Ri's purposely washed out faces.

Marigold shadow at Doo.Ri (left), and banana-inspired liner at Peter Som (right). Photo: Getty Images

Now, a trend that could have been chalked up to a makeup artist with yellow fever was reinforced Saturday evening at Z Spoke by Zac Posen, where Maybelline New York's makeup guru Charlotte Willer used the hue to carry out designer Zac Posen's vision of channeling the theater and street performers. Willer outlined bright yellow shadow with graphic black liner for a cabaret effect.

Is this a harbinger of an impending Spring 2011 trend, or just another canary in a coal mine?

StyleList is your source for New York Fashion Week. Read our runway reviews and backstage beauty reports. Gawk at fashionable celebrities. Watch our video interviews with style personalities. Ruminate on it all with our roundups of Spring 2011 trends.