South Willard cotton shirt, $165

Ralph Lauren knit tie, $38 (on sale)

Miansai bracelet, $68

Blue Streak

In 1958, French Artist Yves Klein first used his now namesake shade in monochromatic works where the color itself was essentially the art. Half a century later, the ultra-rich shade still stands on its own as Klein's influence ripples through menswear as one of the most popular colors of the moment. West coast shop South Willard has even put a shirt in its eponymous collection named after the color. Like all things good (and bad) for you, it's best when you use this hue in small doses, like a sartorial spice to pump up your everyday winter wear.

- Michael Macko

• Klein, ahem, at work on a performance art piece in the early 1960s.