diff --git a/src/kcolorscheme.h b/src/kcolorscheme.h
--- a/src/kcolorscheme.h
+++ b/src/kcolorscheme.h
@@ -284,6 +284,11 @@
          * clicking.
          */
         HoverColor,
+        /**
+         * Color used to draw separators and frames.
+         * @since 5.65
+         */
+        SeparatorColor,
         /**
          * Number of decoration roles.
          * @since 5.65
diff --git a/src/kcolorscheme.cpp b/src/kcolorscheme.cpp
--- a/src/kcolorscheme.cpp
+++ b/src/kcolorscheme.cpp
@@ -173,6 +173,7 @@
 struct DecoDefaultColors {
     int Focus[3];
     int Hover[3];
+    int Separator[3];
 };
 
 // these numbers come from the Breeze color scheme ([breeze]/colors/Breeze.colors)
@@ -257,6 +258,7 @@
 static const DecoDefaultColors defaultDecorationColors = {
     {  61, 174, 233 }, // Focus
     { 147, 206, 233 }, // Hover
+    { 188, 190, 191 }, // Separator
 };
 //END default colors
 
@@ -357,6 +359,7 @@
 
     _brushes.deco[KColorScheme::FocusColor] = cfg.readEntry("DecorationFocus", DECO_DEFAULT(Focus));
     _brushes.deco[KColorScheme::HoverColor] = cfg.readEntry("DecorationHover", DECO_DEFAULT(Hover));
+    _brushes.deco[KColorScheme::SeparatorColor] = cfg.readEntry("DecorationSeparator", DECO_DEFAULT(Separator));
 
     // apply state adjustments
     if (state != QPalette::Active) {