How to add color to an Unity object code example

Example 1: unity c# change color of gameobject

using UnityEngine; 
using System.Collections; 

public class collisionpill : MonoBehaviour 
{      
  	public Color mycolor;       
  	
  	void OnCollisionEnter(Collision other) 
    {         
        if (other.transform.tag == "Pill") 
        {             
        	gameObject.GetComponent<Renderer>().material.color = mycolor;
        }    
    }
}

Example 2: set object to random color unity

[RequireComponent(typeof(Renderer))]
public class colorTint : MonoBehaviour
{
    public List<Color> TintColors;
    // Start is called before the first frame update
    void Start()
    {

            Color c = TintColors[Random.Range(0, TintColors.Count)];

            GetComponent<Renderer>().material.color = c;
    }