diff --git a/customize.dist/src/less2/include/colortheme-dark.less b/customize.dist/src/less2/include/colortheme-dark.less
index 0c09929bd..23a485479 100644
--- a/customize.dist/src/less2/include/colortheme-dark.less
+++ b/customize.dist/src/less2/include/colortheme-dark.less
@@ -157,7 +157,7 @@
 @cp_buttons-cancel-border: @cryptpad_color_grey_400;
 
 // Sidebar layout
-@cp_sidebar-left-bg: @cryptpad_color_grey_800;
+@cp_sidebar-left-bg: @cryptpad_color_grey_850;
 @cp_sidebar-left-fg: @cryptpad_text_col;
 @cp_sidebar-right-bg: @cryptpad_color_grey_900;
 @cp_sidebar-right-fg: @cryptpad_text_col;