PonyRGB

using UnityEngine;
using UnityEngine.UI;
using System.Collections;

public class PonyRGB : MonoBehaviour {

    public Slider[] ponyRGB;
    public Image[] ponyImage;
    int[] sliderInt = new int[3];

    // Use this for initialization
    void Start () {

    }

    // Update is called once per frame
    void Update () {
        sliderInt[0] = (int) ponyRGB[0].value; // Red Value
        sliderInt[1] = (int) ponyRGB[1].value; // Green Value
        sliderInt[2] = (int) ponyRGB[2].value; // Blue Value

        if (ponyRGB[0])
        {
            // The following produces "ponyImage is a field, but a type was expected" error
            ponyImage[].Color = new Color(sliderInt[0], sliderInt[1], sliderInt[2],255);
        }
    }
}