diff --git a/src/Gui/BreadcrumbToolBar.cpp b/src/Gui/BreadcrumbToolBar.cpp
index f6fd3de4c8..00852520ae 100644
--- a/src/Gui/BreadcrumbToolBar.cpp
+++ b/src/Gui/BreadcrumbToolBar.cpp
@@ -42,7 +42,13 @@ using namespace Gui;
 static QString chipStyle(const QString& bgHex)
 {
     QColor bg(bgHex);
-    QColor textColor(QStringLiteral("#cdd6f4"));  // Catppuccin Text
+
+    // Choose text color based on background luminance (WCAG relative luminance)
+    // Dark text on bright backgrounds, light text on dark backgrounds
+    double luminance = 0.2126 * bg.redF() + 0.7152 * bg.greenF() + 0.0722 * bg.blueF();
+    QColor textColor(luminance > 0.5
+                     ? QStringLiteral("#1e1e2e")   // Catppuccin Base (dark)
+                     : QStringLiteral("#cdd6f4"));  // Catppuccin Text (light)
 
     return QStringLiteral(
                "QToolButton {"