No, Rinoa's eyes are much darker. Here's an example.
Rinoa's picture's link
http://www.eyesonff.com/forums/attac...chmentid=15068
Simply look. Rinoa's eyes are so dark that they are on the borderline of being black! This is because both brown genes are working together (in the same direction). I don't know how to make it any more obvious.
Ellone on the other hand has light brown eyes. That's what happens when someone has one blue and one brown gene. The brown is dominant while the blue is recessive. This means that the brown dominates in color over the blue. However, the blue does keep it from becoming dark with what little power it has. (The two different types of genes oppose each other.)
This is how it works and you can't change it.
Edit:
By the way, I'm pretty sure they don't have colored contacts in Squall's world.
Also, I fear it would be incredibly painful for anyone to even attempt to "paint their eyes... :rolleyes2"
Edit2:
How did you get Ellone involved in this? Where does she come in?






