I've often stated that while Ravio is stated to lack courage, he shows wisdom. When Ravio is being compared to Link, it does suggest direct opposition (courage and cowardice), and even the artwork for the game uses upside-down imagery. Yet, he didn't just cave in to Hilda and Yuga, then run away, as a full blown coward would do. No, he formulated a plan, and sought out help from the person he knew could help. This for knowledge that Hilda's plan was flawed, knowing what tools to provide to Link, and seeking help so quickly, are all signs of wisdom. Like wise Hilda is said to lack wisdom, while showing power; and Yuga may lack power, but displays courage.
Even looking at the land, we don't really get true opposites, but more of a twist. We find master ore, which fuses nicely with the Master Sword, not an anti-master ore. The royal family is still in power, with many of their subjects living in the village. Even the mountains still rise high in the air. I have long thought about the Lorule triforce being along the same lines; twisted, with the same virtues, not opposite, and not corrupted.
If you link the virtures of Hyrule's Triforce to their corresponding primary colors, you'd consider that to form cyan you mix blue (wisdom) and green (courage) together. Yuga being without power (red) makes him cyan, and he instead has a cocktail of those two virtues. Therefore Hilda's corresponding virtue would be a blend of red/power and green/courage to make her yellow, and Ravio a blend of blue/wisdom and red/power to form his magenta. These colors are also true opposites of their Hyrule counterparts by terms of the color wheel.
I remember you talking about this in a different discussion, and I still like this perspective. It's also much better than the anti-bravery = coward mess. I don't remember who brought up Ravio having faith, in that other discussion, but I think that general idea fits within your color pallet approach, with a small addition. When we combine blue and red, we don't see blue and red separately; we see only purple/magenta. Similarly, we might not get a blend of wisdom and power, but a virtue in of itself, something like faith.
Although, I think Yuga shows more faith, which actually tracks with a connection to wisdom and courage. I'm not sure what the other two would be, though. Combining/between power and courage could be determination, which Hilda absolutely has in abundance. My best guess, at the moment, for Ravio comes to slyness, or even guile.
