title: Transparent ARGB hex value
body: <p>The colors in <a href="http://msdn.microsoft.com/en-us/library/system.windows.media.colors.aspx">this</a> table is all not transparent. I guess the value for the <code>A</code> is set to <code>FF</code>.</p>
  
  <p>What is the code for transparency? </p>
  
  <p>For example this color FFF0F8FF (AliceBlue), to a transparent code such as <code>??F0F8FF</code> ?</p>