diff --git a/lua/lupancolors/lupandark.lua b/lua/lupancolors/lupandark.lua
index 982d889..cb90ff9 100644
--- a/lua/lupancolors/lupandark.lua
+++ b/lua/lupancolors/lupandark.lua
@@ -6,6 +6,8 @@ local base = require('lupancolors.lupan').options.dark.base
 
 M.colors = {
   base = base,
+  bg = base.de(10).da(70),
+  fg = base.de(75),
   red = base.hue(0),
   orange = base.hue(30),
   yellow = base.hue(60),
@@ -25,7 +27,7 @@ M.theme = lush(function()
   local c = M.colors
   return {
     -- See: h highlight-groups
-    Normal { bg = c.base.de(10).da(70), fg = c.base.de(75) },
+    Normal { bg = c.bg, fg = c.fg },
     CursorLine { bg = Normal.bg.li(5) },
     Visual { bg = Normal.bg.sa(20).li(10) },
     Comment { fg = c.base.de(75).da(20) },
diff --git a/lua/lupancolors/lupanlight.lua b/lua/lupancolors/lupanlight.lua
index 7e9ff2d..760c503 100644
--- a/lua/lupancolors/lupanlight.lua
+++ b/lua/lupancolors/lupanlight.lua
@@ -6,6 +6,8 @@ local base = require('lupancolors.lupan').options.light.base
 
 M.colors = {
   base = base,
+  bg = base.de(60).li(90),
+  fg = base.de(75),
   red = base.hue(0),
   orange = base.hue(30),
   yellow = base.hue(60),
@@ -25,7 +27,7 @@ M.theme = lush(function()
   local c = M.colors;
   return {
     -- See: h highlight-groups
-    Normal { bg = c.base.de(60).li(90), fg = c.base.de(75) },
+    Normal { bg = c.bg, fg = c.fg },
     CursorLine { bg = Normal.bg.da(4) },
     Visual { bg = c.base.de(55).li(70) },
     Comment { fg = c.base.de(60).li(20) },