Bobbi Brown Twilight Night is a moderately cool-toned, very dark gray with a frost finish. It is a permanent eyeliner that retails for $23.00 and contains 0.1 oz.
Bobbi Brown Twilight Night Long-Wear Gel Eyeliner ($22.00 for 0.10 oz.) is described as a "black plum and golden pearl." It's a blackened purple with flecks of gold sparkle. When it's sheered out, it tends to look grayer and almost brown-ish with only a hint of purple. MAC Ash Violet is much lighter and more of a real purple hue. Make Up For Ever #6L is lighter, more red-toned, no gold shimmer. MAC Added Goodness is similar--perhaps a little browner.
Long-wearing, water-resistant color glides on & let's you get it just right before it dries - then stays without a smear or crease.