From: jmose@mapson.attglobal.net   
      
   >Is there an easy way to determine whether a uiObject's color is too dark   
   >to use font.color=black, and instead replace it with font.color=white?   
      
      
   I hate to answer my own question, but I found an interesting post on another   
   newsgroup.   
      
   First, calculate the luminosity, which will have a range from 1 to 255.   
   Then use a white font if L < 127 and a black font if L >= 127.  Seems to   
   work pretty well.   
      
   Luminosity = Red*0.3 + Green*0.59 + Blue*0.11   
      
   Somehow this is tied in with black&white TVs showing color programs!  Here's   
   the link if anyone's interested.   
      
   Thanks,   
   Jim Moseley   
      
      
   http://groups.google.com/group/microsoft.public.excel.worksheet.   
   unctions/browse_thread/thread/2dee166ab1884522/0e45071dae108445?   
   nk=st&q=calculate+font+color+to+white+or+black&rnum=15&hl=en#0e45071dae108445   
      
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