I'd like to draw a square with the fill color darkening as one goes up or as one goes to the right. So, the square should be darkest in the upper-right corner and lightest in the lower-left corner. Is there a way to do this using PGF commands?

2 Answers 2


Such shadings are described in section 85.2 of the TikZ manual. Here's an example of what you want:

{color(0bp)=(white); color(80bp)=(black)} 



  • Thanks so much, exactly what I wanted! I was looking at an old user guide from 2004.
    – arnab
    Jan 2, 2011 at 1:30

Another possibility is using tikz commands:

\tikz\shade[shading=axis,bottom color=black!10,top color=black,shading angle=-45] 
  (0,0) rectangle (3,3);
  • How could be set rectangle border line parameters? I tried ... (0,0) rectangle[line ...] (3,3), but error occured.
    – JardaFait
    Sep 29, 2012 at 12:39
  • @jafan: take a look at \shadedraw
    – ted
    Jun 23, 2013 at 19:21

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