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dvips: User-definable colors

 
 7.2 User-definable colors
 =========================
 
 There are two ways for the user to specify colors not already defined.
 For local changes, there is the command '\Color' which takes two
 arguments.  The first argument is four numbers between zero and one and
 specifies the intensity of cyan, magenta, yellow and black (CMYK) in
 that order.  The second argument is the text that should appear in the
 given color.  For example, suppose you want the words "this color is
 pretty" to appear in a color which is 50% cyan, 85% magenta, 40% yellow
 and 20% black.  You would use the command
 
      \Color{.5 .85 .4 .2}{this color is pretty}
 
    For global color changes, there is a command '\textColor' which takes
 one argument, the CMYK quadruple of relative color intensities.  For
 example, if you want the default color to be as above, then the command
 
      \textColor{.5 .85 .4 .2}
      The text from now on will be this pretty color
 
 will do the trick.
 
    Making a global color change in the midst of nested local colors is
 highly discouraged.  Consequently, Dvips will give you warning message
 and do its best to recover by discarding the current color history.
 

Info Catalog dvips: Color macro files dvips: Color dvips: Color subtleties