diff --git a/change/react-native-windows-2020-04-29-02-59-44-yellowbox.json b/change/react-native-windows-2020-04-29-02-59-44-yellowbox.json
new file mode 100644
index 00000000000..4cf803a33b7
--- /dev/null
+++ b/change/react-native-windows-2020-04-29-02-59-44-yellowbox.json
@@ -0,0 +1,8 @@
+{
+  "type": "prerelease",
+  "comment": "Expose YellowBox functionality to native code",
+  "packageName": "react-native-windows",
+  "email": "asklar@microsoft.com",
+  "dependentChangeType": "patch",
+  "date": "2020-04-29T09:59:44.174Z"
+}
diff --git a/vnext/ReactUWP/Polyester/IconViewManager.cpp b/vnext/ReactUWP/Polyester/IconViewManager.cpp
index 10a43507480..1be6ee0d005 100644
--- a/vnext/ReactUWP/Polyester/IconViewManager.cpp
+++ b/vnext/ReactUWP/Polyester/IconViewManager.cpp
@@ -65,9 +65,11 @@ void IconShadowNode::updateProperties(const folly::dynamic &&props) {
     if (propertyName == "color") {
       if (IsValidColorValue(propertyValue))
         glyphs.Fill(BrushFrom(propertyValue));
-#if FUTURE
-      else if (propertyValue.isNull())
-        ; // Log error, must have a color
+#ifdef DEBUG
+      else if (propertyValue.isNull()) {
+        // Log error, must have a color
+        YellowBox("IconShadowNode - color property must be non-null");
+      }
 #endif
     } else if (propertyName == "fontUri") {
       if (propertyValue.isString()) {
diff --git a/vnext/ReactUWP/Views/ShadowNodeBase.cpp b/vnext/ReactUWP/Views/ShadowNodeBase.cpp
index 7a4e28e9981..f4d22f70f03 100644
--- a/vnext/ReactUWP/Views/ShadowNodeBase.cpp
+++ b/vnext/ReactUWP/Views/ShadowNodeBase.cpp
@@ -154,5 +154,12 @@ void ShadowNodeBase::EnsureHandledKeyboardEventHandler() {
   }
 }
 
+void ShadowNodeBase::YellowBox(const std::string &message) const noexcept {
+  const auto instance = GetViewManager()->GetReactInstance().lock();
+  if (instance) {
+    instance->CallJsFunction("RCTLog", "logToConsole", folly::dynamic::array("warn", message));
+  }
+}
+
 } // namespace uwp
 } // namespace react
diff --git a/vnext/include/ReactUWP/Views/ShadowNodeBase.h b/vnext/include/ReactUWP/Views/ShadowNodeBase.h
index a81260c8201..1c988f9be80 100644
--- a/vnext/include/ReactUWP/Views/ShadowNodeBase.h
+++ b/vnext/include/ReactUWP/Views/ShadowNodeBase.h
@@ -68,6 +68,8 @@ struct REACTWINDOWS_EXPORT ShadowNodeBase : public facebook::react::ShadowNode {
     return false;
   }
 
+  void YellowBox(const std::string &message) const noexcept;
+
   ViewManagerBase *GetViewManager() const;
   XamlView GetView() const {
     return m_view;