Blue-Ray souls and seeing Blue.

[Namaste]

My own theory is that when I first met her she was very depressed and on all kinds of prescription drugs to deal with it but over the last three years I have helped her become more at peace with herself and she has weaned herself off the drugs, so it might be a reflection of that change in mental state. What I find interesting is that she's the only person I've ever had this sort of experience with, I don't see colours when I touch anyone else.

Ah yes, so you're seeing an overview of her state of being, and not yours. The drugs would explain the darker colour.