How to Change the Shader Color?

hey! I am using a standard shader. But am facing some problem.

this is my code::

using System.Collections; using System.Collections.Generic; using UnityEngine;

public class BackGroundtrial : MonoBehaviour {

 private Color anotherColor = new Color (253, 188, 134);

 // Use this for initialization
 void Start () {
     SpriteRenderer s = GetComponent<SpriteRenderer> ();
     s.material.SetColor ("_Color", anotherColor);
 }
 
 // Update is called once per frame
 void Update () {
     
 }

}

but what happens is that the color doesn't get displayed. When I tried to instead of putting an rgb value had used color in the following form :- color.red then the color got changed. So how can I use rgb values in order to change the colours.