diff --git a/includes/client_side_nav.php b/includes/client_side_nav.php
index 17d506e1..7899113d 100644
--- a/includes/client_side_nav.php
+++ b/includes/client_side_nav.php
@@ -1,5 +1,5 @@
 <!-- Main Sidebar Container -->
-<aside class="main-sidebar sidebar-dark-<?php echo nullable_htmlentities($config_theme); ?> d-print-none">
+<aside class="main-sidebar sidebar-dark-<?php if (isset($_GET['client_id'])) { echo "gray"; } else { echo nullable_htmlentities($config_theme); } ?> d-print-none">
 
     <a class="brand-link pb-1 mt-1" href="clients.php">
         <p class="h5">
diff --git a/includes/header.php b/includes/header.php
index 2acbeed4..ee63b884 100644
--- a/includes/header.php
+++ b/includes/header.php
@@ -48,5 +48,5 @@ header("X-Frame-Options: DENY");
     <script src="plugins/toastr/toastr.min.js"></script>
 
 </head>
-<body class="hold-transition sidebar-mini layout-fixed layout-navbar-fixed accent-<?php echo nullable_htmlentities($config_theme); ?>">
+<body class="hold-transition sidebar-mini layout-fixed layout-navbar-fixed accent-<?php if (isset($_GET['client_id'])) { echo "blue"; } else { echo nullable_htmlentities($config_theme); } ?>">
     <div class="wrapper text-sm">
diff --git a/includes/top_nav.php b/includes/top_nav.php
index 944cd3c2..730e9d60 100644
--- a/includes/top_nav.php
+++ b/includes/top_nav.php
@@ -1,5 +1,5 @@
 <!-- Navbar -->
-<nav class="main-header navbar navbar-expand navbar-<?php echo nullable_htmlentities($config_theme); ?> navbar-dark">
+<nav class="main-header navbar navbar-expand navbar-<?php if (isset($_GET['client_id'])) { echo "gray"; } else { echo nullable_htmlentities($config_theme); } ?> navbar-dark">
 
     <!-- Left navbar links -->
     <ul class="navbar-nav">
