diff --git a/config.def.h b/config.def.h
index c86e81e..af7a22d 100644
--- a/config.def.h
+++ b/config.def.h
@@ -27,7 +27,8 @@ int line_height = 0;   /* if line height < font height, it will be raised to fon
 int separator_height = 2; /* height of the separator line between two notifications */
 int padding = 0;
 int h_padding = 0; /* horizontal padding */
-enum separator_color sep_color = AUTO; /* AUTO or FOREGROUND */
+enum separator_color sep_color = AUTO; /* AUTO, FOREGROUND, FRAME, CUSTOM */
+char *sep_custom_color_str = NULL; /* custom color if sep_color is set to CUSTOM */
 
 int frame_width = 0;
 char *frame_color = "#888888";
diff --git a/dunst.c b/dunst.c
index 308153a..17b7bb2 100644
--- a/dunst.c
+++ b/dunst.c
@@ -77,6 +77,7 @@ static dimension_t window_dim;
 static bool pause_display = false;
 static char **dmenu_cmd;
 static unsigned long framec;
+static unsigned long sep_custom_col;
 static r_line_cache line_cache;
 
 bool dunst_grab_errored = false;
@@ -848,8 +849,14 @@ void draw_win(void)
                         double color;
                         if (sep_color == AUTO)
                                 color = calculate_foreground_color(line.colors->BG);
-                        else
+                        else if (sep_color == FOREGROUND)
                                 color = line.colors->FG;
+                        else if (sep_color == FRAME)
+                                color = framec;
+                        else {
+                                /* CUSTOM */
+                                color = sep_custom_col;
+                        }
                         drawrect(dc, 0, 0, width + (2*h_padding), separator_height, true, color);
                         dc->y += separator_height;
                 }
@@ -1463,6 +1470,12 @@ void setup(void)
 
         framec = getcolor(dc, frame_color);
 
+        if (sep_color == CUSTOM) {
+                sep_custom_col = getcolor(dc, sep_custom_color_str);
+        } else {
+                sep_custom_col = 0;
+        }
+
         /* parse and set geometry and monitor position */
         if (geom[0] == '-') {
                 geometry.negative_width = true;
@@ -1674,9 +1687,12 @@ void load_options(char *cmdline_config_path)
                                 sep_color = AUTO;
                         else if (strcmp(c, "foreground") == 0)
                                 sep_color = FOREGROUND;
-                        else
-                                fprintf(stderr,
-                                        "Warning: Unknown separator color\n");
+                        else if (strcmp(c, "frame") == 0)
+                                sep_color = FRAME;
+                        else {
+                                sep_color = CUSTOM;
+                                sep_custom_color_str = strdup(c);
+                        }
                         free(c);
                 }
         }
diff --git a/dunst.h b/dunst.h
index 824b6ed..a1887d0 100644
--- a/dunst.h
+++ b/dunst.h
@@ -18,7 +18,7 @@
 #define ColBG 0
 
 enum alignment { left, center, right };
-enum separator_color { FOREGROUND, AUTO };
+enum separator_color { FOREGROUND, AUTO, FRAME, CUSTOM };
 enum follow_mode { FOLLOW_NONE, FOLLOW_MOUSE, FOLLOW_KEYBOARD };
 
 typedef struct _dimension_t {
diff --git a/dunstrc b/dunstrc
index d6c129b..ed2b003 100644
--- a/dunstrc
+++ b/dunstrc
@@ -91,8 +91,11 @@
     horizontal_padding = 10
 
     # Define a color for the separator.
-    # This can either be "auto" or "foreground". "Auto" tries to find a color
-    # that fits nicely to the background color.
+    # possible values are:
+    #  * auto: dunst tries to find a color fitting to the background
+    #  * foreground: use the same color as the foreground
+    #  * frame: use the same color as the frame.
+    #  * anything else will be interpreted as a X color
     separator_color = auto
 
     # print a notification on startup