Midnight Express is the blue Zulu.
Yep, looks black in the bottle, just like Zulu.
Basecoat: Gelous (2 coats)
Color: NARS Midnight Express (4 coats)
Topcoat: David (1 coat)
Consistency was pretty good for this. Not too runny or gloppy. It is thin, though, and even after four coats I have some noticeable bald spots. Well, I notice them, anyway. Cleanup was terrrrible. I spent a lot of time cleaning up but you can still see some staining on my cuticles. Better off just being extremely careful with your application.
Midnight Express is one of those polishes, like Zulu, that looks black in indoor light. My photos are pretty color accurate for the polish.