Is there an easy way to blend two System.Drawing.Color values?

I think its easier to blend an array of colors, in case you want to blend more then 2 Here is my function:

private Color colorBlend(List<Color> clrArr)
{   
    int r = 0;
    int g = 0;
    int b = 0;
    foreach(Color color in clrArr)
    {
        r += color.R;
        g += color.G;
        b += color.B;
    }
    r = r / clrArr.Count;
    g = g / clrArr.Count;
    b = b / clrArr.Count;
    return Color.FromArgb(r, g, b);
}

The array must be as a List of color Use :

List<Color> colorList = new List<Color>();
colorList.Add(Color.Red);
colorList.Add(Color.Blue);
picturebox.backColor = colorBlend(colorList);