diff --git a/doc/indent_guides.txt b/doc/indent_guides.txt
index c3c70b9..21cf05e 100644
--- a/doc/indent_guides.txt
+++ b/doc/indent_guides.txt
@@ -57,9 +57,9 @@ Default: 1. Values: 0 or 1.
                                     *'indent_guides_auto_colors_change_percent'*
 Use this option to control the percent at which the highlight colors will be
 lightened or darkened.
-Default: 0.10. Values: between 0 and 1.
+Default: 0.20. Values: between 0 and 1.
 >
-  let g:indent_guides_auto_colors_change_percent = 0.10
+  let g:indent_guides_auto_colors_change_percent = 0.20
 <
 
 ==============================================================================
diff --git a/plugin/indent_guides.vim b/plugin/indent_guides.vim
index 916bef0..1092f1e 100644
--- a/plugin/indent_guides.vim
+++ b/plugin/indent_guides.vim
@@ -29,7 +29,7 @@ let g:indent_guides_auto_colors =
 
 let g:indent_guides_auto_colors_change_percent =
   \ exists('g:indent_guides_auto_colors_change_percent') ?
-  \ g:indent_guides_auto_colors_change_percent : 0.10
+  \ g:indent_guides_auto_colors_change_percent : 0.20
 
 let g:indent_guides_debug =
   \ exists('g:indent_guides_debug') ?