I've had midnight blue for a few years and it's a great color, it's one of the colors that changes appearance under different lighting conditions. I'd say 95% of the time I love it, but under some conditions it does appear a little purple, but I wouldn't hesitate to get it again. I wouldn't let just anyone wash it though, including the guys at the dealer, like most dark colors it will show light scratches and swirl marks if you aren't careful.

My dealer used to refer to lapis as "no sale lapis" and said they could never sell lapis blue cars. With it now being around 4k as a paint to sample I really think you'd be happier in the long run saving that money or spending it on options and going with midnight.