NWT Classic/Cute Swingy Dress, Dark Blue, Size Sm, American Apparel

I love this dress! Timeless, classic, a great look! Drape-y, Swing-y, comfortable and cute! It is a dark blue, maybe dark royal, almost navy? I hope the picture shoes it well... Seems to be well made... You'll see the back has a...is it called keyhole?...opening, another nice detail. Please see pics for measurements. Thanks!