Answer by AyAMrau

Despite this being part of unity examples in docs, using Time.time in lerp is incorrect. The answer here should make everything clear: [http://answers.unity3d.com/questions/328891/controlling-duration-of-colorlerp-in-seconds.html][1] [1]: http://answers.unity3d.com/questions/328891/controlling-duration-of-colorlerp-in-seconds.html