unity change scene background color code example

Example 1: unity change text color

// To change the color of a text, see below
GameObject.GetComponent<Text>().color = Color.black;

Example 2: how to change image color unity

using UnityEngine.UI;

public GameObject YourgameObjectWithImage;
YourgameObjectWithImage.GetComponent<Image>().color = new Color32(255, 255, 225, 225);