NARS 413 BLKR is a very cool-toned, very dark blue with a jelly finish. It is a limited edition nail lacquer that retails for $20.00 and contains 0.5 oz.
NARS 413 BLKR Nail Polish ($19.00 for 0.50 fl. oz.) is described as a "midnight blue." It's a rich, deep, dark blue with a jelly-cream finish--not quite as squishy and as plush as a true jelly, but it doesn't have the texture or look of a true cream. MAC Double Trouble is similar. Rescue Beauty Lounge Dead Calm is lighter, cream. China Glaze First Mate is also a cream. See comparison swatches.
Continuing with the same hues that have made NARS Nail Polish a coveted favorite, NARS introduces a new technology to its Nail Polish, specifically designed to help improve the formula's flexibility, durability, wear and gloss properties. NARS reintroduces its Nail Polish with a newly developed polymer system that provides extended wear and a tough, durable, chip-resistant finish. The superior longwearing formula also imparts an initial high-gloss luster with prolonged gloss retention, and is also water and detergent resistant with additional UV protection to prevent polish discoloration.