Change an objects material.Setcolour to it's default colour?

Code (CSharp):

1.         gameObject.GetComponentInChildren<Renderer> ().material.SetColor ("_Color", Color.red);
2.  

The top code will change the childs color to red. Is there away I can revert this, so lets say if (true) setRed, else if (false) set it's original colour

 

you'd have to cache it's original color:

Code (CSharp):

1.  
2. public bool makeRed;
3.  
4. Color originalColor;
5. new MeshRenderer renderer;
6.  
7. void Start() {
8.  
9.     renderer = gameObject.GetComponent<MeshRenderer>();
10.     originalColor = renderer.material.color;
11.  
12. }
13.  
14.  
15. void Update() {
16.  
17.     renderer.material.color = (makeRed) ? Color.red : originalColor;
18.  
19. }
20.