If you have it, Sharkskin shadestick or Blacktrack fluidline. I've realized that darker blues always come out better when I put a black base underneath of it. At least on me, I am a NC50, to let you know.
Or try Carbon eyeshadow on the lid and put Deep Truth on top of that. I love layering eyeshadows (a little secret of mine -- not so much anymore). Heh.