CafeMom.com : Smoky Gray Blue : 20 Nail Colors to Rock this Fall & Winter -- This smokey grayish blue is such a great color to build a look off of. I'm imagining this color peeking out of the oversized sleeves of a dark gray knit sweater or cardigan. Dark Blue Winter Nail Colors, Stars Nails, Blue Nail Color, Nail Polish Hacks, Nagellack Trends, Blue Nail Polish, Fall Nail Colors, Nail Polish Colors, Blue Nails