Life In Color. (слэш)

Alternate Universe where everything is in different shades of grey… and only turns colorful when you meet your soulmate/go anywhere they have been before, or see anything they have touched.
Tony Stark has roamed the Earth, and found the promise of colors to be a cruel joke. Loki has raged at the Norns and fought against their unfairness for centuries. They have both given up, accepting the fact that they are deemed unworthy of love by fate.
… and then their paths intersect.