You might like Flux. It adjusts your display's color temperature depending on the time of day. No more blinding screens when you open your MacBook at night. :)
The colors aren't that beautiful but it's much less stressful for my eyes, and the highlight colors were spot on as well.
Thanks to emidln for informing that it's Solarized Dark, I've used the default Solarized but I've skipped the Dark one because of somewhat ugly colors.