diff --git a/src/styles/theme/dark-blue/element-plus.css b/src/styles/theme/dark-blue/element-plus.css
index 37800c6..7f31578 100644
--- a/src/styles/theme/dark-blue/element-plus.css
+++ b/src/styles/theme/dark-blue/element-plus.css
@@ -30,7 +30,7 @@ html.dark-blue {
   --el-fill-color-blank: #031e47;
   /** bg-color */
   --el-bg-color: #021633;
-  --el-bg-color-overlay: #021633;
+  --el-bg-color-overlay: #031e47;
   /** mask */
   --el-mask-color: rgba(0, 0, 0, 0.5);
 }
diff --git a/src/styles/theme/dark-blue/element-plus.scss b/src/styles/theme/dark-blue/element-plus.scss
index 0e2b504..faa2d98 100644
--- a/src/styles/theme/dark-blue/element-plus.scss
+++ b/src/styles/theme/dark-blue/element-plus.scss
@@ -91,7 +91,7 @@ $bg-color: () !default;
 $bg-color: map.merge(
   (
     "": #021633,
-    "overlay": #021633
+    "overlay": #031e47
   ),
   $bg-color
 );