In order what are the blackest black to brown hair colors?

I know Blue Black is the darkest


Then Natural Blue Black


Then Midnight black (which way way to black for me)


Then what shade is next? Brown black, or natural black? It seems like in the pictures is shows that natural black is lighter than brown black.In order what are the blackest black to brown hair colors?
in the US, the levels of brunette shades are as follows


level 1 darkest brown (black)


level 2 dark brown


level 3 Medium brown


level 4 Light brown


level 5 Lightest brown





I'm guessing you are looking at color box ';names';, the natural tone is probably lighter than the brown black because there are no other colors being added to make it lighter or darker. The brown black color would be a level 2, slightly lighter than level 1.