Is there a way to make Safari open a dark blank page?

I have Safari set to open a blank page when I open a new tab. I like it better than what it is normally set to, but unfortunately I work late a lot and the giant white area on the screen bothers my eyes a considerable deal. Does anybody know a way to make the blank page darker so that it's easier on the eyes?

Just for reference, here's the blank page I'm talking about: http://ift.tt/1KyXsiA