diff --git a/app/Views/report/custom1.php b/app/Views/report/custom1.php
index 307c703..7e67906 100644
--- a/app/Views/report/custom1.php
+++ b/app/Views/report/custom1.php
@@ -876,28 +876,28 @@
                                         type: 'line',
                                         xMin: 2,
                                         xMax: 2,
-                                        borderColor: '#999',
+                                        borderColor: '#333',
                                         borderWidth: 1
                                     },
                                     minus2sd: {
                                         type: 'line',
                                         xMin: -2,
                                         xMax: -2,
-                                        borderColor: '#999',
+                                        borderColor: '#333',
                                         borderWidth: 1
                                     },
                                     plus3sd: {
                                         type: 'line',
                                         xMin: 3,
                                         xMax: 3,
-                                        borderColor: '#333',
+                                        borderColor: '#ccc',
                                         borderWidth: 2
                                     },
                                     minus3sd: {
                                         type: 'line',
                                         xMin: -3,
                                         xMax: -3,
-                                        borderColor: '#333',
+                                        borderColor: '#ccc',
                                         borderWidth: 2
                                     }
                                 }