--- a/layout/inspector/inDOMUtils.cpp
+++ b/layout/inspector/inDOMUtils.cpp
@@ -47,16 +47,17 @@
 #include "nsCSSValue.h"
 #include "nsColor.h"
 #include "mozilla/StyleSetHandleInlines.h"
 #include "nsStyleUtil.h"
 #include "nsQueryObject.h"
 #include "mozilla/ServoBindings.h"
 #include "mozilla/ServoStyleRule.h"
 #include "mozilla/ServoStyleRuleMap.h"
+#include "mozilla/ServoCSSParser.h"
 
 using namespace mozilla;
 using namespace mozilla::css;
 using namespace mozilla::dom;
 
 ///////////////////////////////////////////////////////////////////////////////
 
 inDOMUtils::inDOMUtils()
@@ -1031,19 +1032,23 @@ inDOMUtils::ColorToRGBA(const nsAString&
   }
 
   return NS_OK;
 }
 
 NS_IMETHODIMP
 inDOMUtils::IsValidCSSColor(const nsAString& aColorString, bool *_retval)
 {
+#ifdef MOZ_STYLO
+  *_retval = ServoCSSParser::IsValidCSSColor(aColorString);
+#else
   nsCSSParser cssParser;
   nsCSSValue cssValue;
   *_retval = cssParser.ParseColorString(aColorString, nullptr, 0, cssValue, true);
+#endif
   return NS_OK;
 }
 
 NS_IMETHODIMP
 inDOMUtils::CssPropertyIsValid(const nsAString& aPropertyName,
                                const nsAString& aPropertyValue,
                                bool *_retval)
 {