I'm not sure when it happened. But at some point during the past few years, my infatuation with pink ended. Maybe it was a case of too many pink plastic toys during my daughter's early years that caused me to turn away from the bubblegum hue. Whatever the reason, I am now officially infatuated with purple.Purple is like pink but with a darker, more mysterious and complex side. Thus it's perfect for the transition into fall, when weather and fashion trends dictate that we ditch the sheer summer colors and go for rich, opulent fabrics.And I've found just the thing to celebrate fall's return: the most luscious shade of purple nail polish from Zoya. Called Dannii, it's a rich, glittery grape metallic that looks equally good on fingers and toes. Even better, the line is devoid of harmful chemicals and has some serious staying power -- we're talking no cracks or chips for days.You can find the Zoya line on the Birchbox site.