Blue
If there was one thing that Tifa Lockhart loved about Cloud Strife, it was his eyes. Those deep and entrancing blue eyes which held a certain beauty to them that she couldn't quite place. Often times she'd find herself lost in the midst of them, and if she stared long enough, she would notice that they were not always made up of just one color. They would swirl around the pupil like a kaleidoscope and finally come together to form a beautiful sea of mako-green blue. Iridescent and ever changing, just like the life of the man that held them.