diff --git a/src/client/theme-default/components/VPNav.vue b/src/client/theme-default/components/VPNav.vue
index 9897e1a6..538a7165 100644
--- a/src/client/theme-default/components/VPNav.vue
+++ b/src/client/theme-default/components/VPNav.vue
@@ -35,6 +35,11 @@ provide('close-screen', closeScreen)
   .VPNav.no-sidebar {
     backdrop-filter: saturate(50%) blur(8px);
     -webkit-backdrop-filter: saturate(50%) blur(8px);
+    background: rgba(255, 255, 255, 0.9);
+  }
+
+  .dark .VPNav.no-sidebar {
+    background: rgba(36, 36, 36, 0.9);
   }
 
   @supports not (backdrop-filter: saturate(50%) blur(8px)) {
diff --git a/src/client/theme-default/components/VPNavBar.vue b/src/client/theme-default/components/VPNavBar.vue
index 4e27b1f6..cf5921e3 100644
--- a/src/client/theme-default/components/VPNavBar.vue
+++ b/src/client/theme-default/components/VPNavBar.vue
@@ -67,6 +67,11 @@ const { hasSidebar } = useSidebar()
   .VPNavBar.has-sidebar .content {
     backdrop-filter: saturate(50%) blur(8px);
     -webkit-backdrop-filter: saturate(50%) blur(8px);
+    background: rgba(255, 255, 255, 0.9);
+  }
+
+  .dark .VPNavBar.has-sidebar .content {
+    background: rgba(36, 36, 36, 0.9);
   }
 
   @supports not (backdrop-filter: saturate(50%) blur(8px)) {