OPI nail, navy nail color, San Francisco collection

Hi, nail lovers? I wanna give you a quiz about this nail 

Today's nail I'd like to introduce is OPI San Francisco Collection NL F58

you know what color it is? 

 This is not black or navy color. 

 You feel embarrassed when it comes to the color on my nail :) 

It looks more attractive cuz the color of it is so unusual color 

 As Autumn is coming, I usually keep an eye on navy color like wine color

I just like it, that 's why I've chosen to apply this color on my nail. 

Why don't you try? then give me your feeling of it. XD