Ki is a strong duochrome of ashy (meaning, for me, gray-ish), rather dark purple and forest-y green. The purple is dominant, with the green coming out in dim or florescent lighting.
Here is a blurry picture showing the green. I'd place the green as somewhere inbetween China Glaze Gussied-Up Green and China Glaze Wagon Trail.
I was really happy that the duochrome was so strong. Everyone can tell immediately that you are wearing a freaking awesome color on your nails. I got lots of oohs and ahhhs, and how-cool-is-that!s at work yesterday. :)