If not rgb, what is standard? Hex?

I pulled out all my colors and used yours. They actually matched pretty closely to what I had. 

I actually changed the box-shadow significantly. I removed the gray background color and just used a single (not multiple) shadows. There's enough shadow where you can tell when you hover over or select a button, but it's significantly less "heavy" than before. Let me know what you think, it's no big deal to change it back.

Used Compass.