Fence Color Numerical Value

Just got Fences 2 and I'm really excited about being able to color each fence individually.  I was wondering if there is a place - maybe the registry or a config file -  where I can see the actual numerical HSV or RGB values of the fence color itself (the way you can see HSV/RGB for the text color).

I know it's kind of silly, but I'd like all my blue fences to be the exact same blue.