The HTML 4.0 guaranteed colors.
diff --git a/Tools/pynche/html40colors.txt b/Tools/pynche/html40colors.txt
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+# HTML 4.0 color names
+Black	#000000
+Silver	#c0c0c0
+Gray	#808080
+White	#ffffff
+Maroon	#800000
+Red	#ff0000
+Purple	#800080
+Fuchsia	#ff00ff
+Green	#008000
+Lime	#00ff00
+Olive	#808000
+Yellow	#ffff00
+Navy	#000080
+Blue	#0000ff
+Teal	#008080
+Aqua	#00ffff