ColorBlock.disabledColor

public Color disabledColor ;

説明

無効時の色

using UnityEngine;
using System.Collections;
using UnityEngine.UI; // Required when Using UI elements.

public class ExampleClass : MonoBehaviour 
{
	public Button button;
	public Color newColor;

	void Start ()
	{
		//Changes the button's Disabled color to the new color.
		ColorBlock cb = button.colors;
		cb.disabledColor = newColor;
		button.colors = cb;
	}
}