diff --git a/packages/flutter_test/lib/src/binding.dart b/packages/flutter_test/lib/src/binding.dart
index d2544ef060c..8ec53720b7a 100644
--- a/packages/flutter_test/lib/src/binding.dart
+++ b/packages/flutter_test/lib/src/binding.dart
@@ -1505,7 +1505,7 @@ abstract class TestWidgetsFlutterBinding extends BindingBase
     return announcements;
   }
 
-  static const TextStyle _messageStyle = TextStyle(color: Color(0xFF917FFF), fontSize: 40.0);
+  static const TextStyle _messageStyle = TextStyle(color: Color(0xFF8F7FFF), fontSize: 40.0);
 
   static const Widget _preTestMessage = Center(
     child: Text('Test starting...', style: _messageStyle, textDirection: TextDirection.ltr),
diff --git a/packages/flutter_test/test/pre_test_message_accessibility_test.dart b/packages/flutter_test/test/pre_test_message_accessibility_test.dart
new file mode 100644
index 00000000000..f757ed9a09d
--- /dev/null
+++ b/packages/flutter_test/test/pre_test_message_accessibility_test.dart
@@ -0,0 +1,15 @@
+// Copyright 2014 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+import 'package:flutter_test/flutter_test.dart';
+
+void main() {
+  /// Verifies that the pre-test message shown by flutter_test
+  /// meets the minimum WCAG text contrast accessibility guideline.
+  testWidgets('pre-test message meets text contrast guideline', (WidgetTester tester) async {
+    // The pre-test message is already attached to the render tree by the
+    // TestWidgetsFlutterBinding before this test runs, so no pumpWidget is needed.
+    await expectLater(tester, meetsGuideline(textContrastGuideline));
+  });
+}