How to fade out color.alpha in the UI component? RawImage.color.a

I'm using Unity 5.3.2 and I'm trying to fade out the alpha color of my rawImage.
I'm using UnityEngine.UI;

I try

Code (csharp):

1.  actualValeu = 100f;
2. this.GetComponent<RawImage>().color = new Color(147f, 244f, 196f, actualValeu);
3.  

and

Code (csharp):

1. myMatrixRawImage.color = new Color(147f, 0f, 196f, 100f);

but do not work. it do not go to 100

Any idea, is it a known bug?
What I'm making wrong?


Just in case full script

Code (csharp):

1.  
2. using UnityEngine;
3. using UnityEngine.UI;
4. using System.Collections;
5.  
6.  
7.  
8. public class FadeMatrix : MonoBehaviour {
9.  
10.  
11.    
12.     public float finalValeu = 28f;
13.     public float fadeValue = 0.1f;
14.  
15.  
16.     private RawImage MatrixRawImage;
17.     private Color rawColor;
18.     public float actualValeu = 255f;
19.     private bool fadeOut = true;
20.  
21.     void Awake()
22.     {
23.         MatrixRawImage = this.GetComponent<RawImage>();
24.         rawColor = MatrixRawImage.color;
25.     }
26.  
27.     // Use this for initialization
28.     void Start () {
29.         fadeOut = true;
30.         actualValeu = 255f;
31.     }
32.    
33.     // Update is called once per frame
34.     void Update () {
35.        
36.     }
37.  
38.     void OnGUI ()
39.     {
40.         if (fadeOut)
41.         {
42.             FadeOut();
43.         }
44.     }
45.  
46.  
47.  
48.     void FadeOut()
49.     {
50.         if (actualValeu >= finalValeu)
51.         {
52.             actualValeu = actualValeu - fadeValue;
53.             //MatrixRawImage.color = new Color(147f, 244f, 196f, 100f);
54.             this.GetComponent<RawImage>().color = new Color(147f, 244f, 196f, actualValeu);
55.         } else
56.         {
57.             fadeOut = false;
58.         }
59.     }
60. }
61. [/I]
62.  
63.  

 

color values are all ranged from 0f to 1f...

http://docs.unity3d.com/ScriptReference/Color.html

 

@LeftyRighty / @AlanMattano - And then there is also less mentioned Color32, that seems to be working (I never use it) and it takes byte values 0-255 for each color component, if you really want to set values between 0-255. I've no idea if it has negative/positive effects on performance.

 

looking at the documentation, material's color attribute appears to only take the "color" type, although color32 have implicit conversions. So you could create a color32 and apply it to the material's color attribute and unity would need to do a conversion step. Probably small fries on the performance impact but it's an extra step

 

Thanks to all, I'll look more often the documentation before asking in the forum.