How to add origColor code structure to lerp my texture and not the model

function correct(obj : GameObject)
{
    var tempMats : Material[] = obj.GetComponent("LabelColorHover").OrigColor;
    var origColor : Color =obj.GetComponent("LabelColorHover").origColor;
    var feedbackMats : Material[] = new Material[tempMats.Length];
    for(var i = 0 ; i < tempMats.Length ; i++)
    {
        feedbackMats[i] = greenMaterial;
        gameObject.Find("GameObject").GetComponent("BlinkingText").showCorrectText = true;//flashing correct text when model truns green.
    }
    obj.renderer.materials = feedbackMats;
    yield new WaitForSeconds(2.0);
    obj.renderer.materials = tempMats;
    obj.renderer.material.color = origColor;
    gameObject.Find("GameObject").GetComponent("BlinkingText").showCorrectText = false;
}