To fill shape with color in power point interop

Question

I want to fill (255,168,0) color in my shape when I run this below code it kinda gives me a little lighter color in blue.

   private void Shape_fill_Click(object sender, RibbonControlEventArgs e)
    {
        Color_palette.Visible = true;
         type = "Fill";           
    }

    private void btn_Orange_Click(object sender, RibbonControlEventArgs e)
    {
        if(type=="Fill")
        { 
        PowerPoint.Application ppApp = Globals.ThisAddIn.Application;
        PowerPoint.ShapeRange ppshr = ppApp.ActiveWindow.Selection.ShapeRange;
        ppshr.Fill.ForeColor.RGB = System.Drawing.Color.FromArgb(255,168,0).ToArgb(); 
        }

Question: How can I get a different or a varying color other than lighter blue?

Answer 1

Here the color RGB is given in format of BGR because interop reads it as BGR and not RGB

private void btn_Orange_Click(object sender, RibbonControlEventArgs e)
{
    if(type=="Fill")
    {  
       PowerPoint.Application ppApp = Globals.ThisAddIn.Application;
            PowerPoint.ShapeRange ppshr = ppApp.ActiveWindow.Selection.ShapeRange;
            // here the color RGB is given in format of BGR because interop reads it as BGR and not RGB

            ppshr.Fill.ForeColor.RGB =System.Drawing.Color.FromArgb(0,168,255).ToArgb();
       }
 }