diff --git a/src/kernel/dguiapplicationhelper.cpp b/src/kernel/dguiapplicationhelper.cpp
index b727b789..a7a4224b 100644
--- a/src/kernel/dguiapplicationhelper.cpp
+++ b/src/kernel/dguiapplicationhelper.cpp
@@ -491,6 +491,13 @@ DPalette DGuiApplicationHelper::standardPalette(DGuiApplicationHelper::ColorType
         QPalette::ColorRole role = static_cast<QPalette::ColorRole>(i);
         QColor color = qcolor_list[i];
 
+#if QT_VERSION >= QT_VERSION_CHECK(5, 12, 0)
+        if (role == QPalette::PlaceholderText) {
+            // 5.15新添加此颜色 这里使用5.11的颜色保证效果与5.11对齐
+            color = dcolor_list[DPalette::PlaceholderText];
+            continue;
+        }
+#endif
         // 处理半透明色
         if (DGuiApplicationHelperPrivate::compositingColor) {
             switch (role) {