diff --git a/tests/RuleSet/LenientParsingTest.php b/tests/RuleSet/LenientParsingTest.php
index 54d63e5b..39e7bf74 100644
--- a/tests/RuleSet/LenientParsingTest.php
+++ b/tests/RuleSet/LenientParsingTest.php
@@ -131,4 +131,26 @@ public function caseInsensitivity()
             $oResult->render()
         );
     }
+
+    /**
+     * @test
+     */
+    public function invalidColor()
+    {
+        $sFile = __DIR__ . '/../fixtures/invalid-color.css';
+        $oParser = new Parser(file_get_contents($sFile), Settings::create()->withLenientParsing(true));
+        $oParser->parse();
+    }
+
+    /**
+     * @test
+     */
+    public function invalidColorStrict()
+    {
+        $this->expectException(UnexpectedTokenException::class);
+
+        $sFile = __DIR__ . '/../fixtures/invalid-color.css';
+        $oParser = new Parser(file_get_contents($sFile), Settings::create()->beStrict());
+        $oParser->parse();
+    }
 }
diff --git a/tests/fixtures/invalid-color.css b/tests/fixtures/invalid-color.css
new file mode 100644
index 00000000..31602f37
--- /dev/null
+++ b/tests/fixtures/invalid-color.css
@@ -0,0 +1,11 @@
+#test {
+  color: #a;
+  background: #ab;
+}
+
+body
+  color: #abcd;
+  background: #abcde;
+}
+
+a { color: #fffff;}