If you're viewing this article on mobile: don't adjust your contrast. Also, welcome to the mobile-phone-image-on-a-mobile-phone vortex. Two new colors, Black and Jet Black, replace the tried-and-"meh" Space Gray, which was kinda black, but not really. Jet Black is the glossier of the two colors and the one that's sure to show every single one of your greasy fingerprints. Black is, well, black, and the more muted and matte, similar to Space Gray. But it's Black, not gray.
As Apple CEO Tim Cook explained in the live keynote broadcast, users have long clamored for "Rose Gold in the streets, but Jet Black in the sheets."