diff --git a/src/fields/Colours.php b/src/fields/Colours.php
index 8846c2f..b97da32 100644
--- a/src/fields/Colours.php
+++ b/src/fields/Colours.php
@@ -91,7 +91,7 @@ public function normalizeValue($value, ElementInterface $element = null)
             $value = $this->defaultValue();
         }
 
-        return $value;
+        return parent::normalizeValue($value, $element);
     }
 
     /**