Midnight Blue

I'll be going out of town for a few days, and may not have access to the internet while I am travelling, so I just thought I'd write a little something before I take a short break from blogging. (Although, it may not exactly be a break, since I'm hard at work on the Harry Potter discussions I'm doing on my book club blog, as announced in my previous post on this blog.)
I was just wondering what midnight blue looks like. I mean, I've heard it's a really beautiful shade of blue, and blue is my favourite colour and I love almost every shade of blue, but I'd never really seen exactly what midnight blue looks like. So I did a little Google Image Search and I got a hint of the exact shade that is called midnight blue. It is this shade, to be precise:

Now, I really wonder what makes them call this shade of blue 'midnight blue'. The sky at midnight is never this shade. Years and years back it used to be an inky blue, and you could see the stars even, but nowadays it's just red, and you can't really see any stars. At least, the Calcutta sky is. A reddish, or maybe orangish, black. You may think it's really the street lights, those big orange fluorescent lamps that emit a powerful glow. But then you have a power cut, and it's dark everywhere, and still the sky has that tint of red. And there are no stars- a few bright planets maybe, like Venus...but no stars. And then you realise it's not really the sky you're watching; it's the blanket of polluted air that you are staring at. Maybe, unless you get to fly really high, well above the troposphere and in the stratosphere, you don't really get to see the sky. What a pity.
And I'm still wondering why it's called 'midnight blue'...