diff --git a/browser/ui/brave_ads/BUILD.gn b/browser/ui/brave_ads/BUILD.gn
index 5a683f1d789a..2daab8f9625c 100644
--- a/browser/ui/brave_ads/BUILD.gn
+++ b/browser/ui/brave_ads/BUILD.gn
@@ -21,6 +21,7 @@ source_set("brave_ads") {
       "//brave/app:brave_generated_resources_grit",
       "//brave/app/vector_icons",
       "//brave/browser/profiles:util",
+      "//brave/browser/themes",
       "//brave/components/brave_ads/browser",
       "//brave/components/brave_ads/common",
       "//components/prefs",
@@ -30,7 +31,6 @@ source_set("brave_ads") {
       "//ui/compositor",
       "//ui/display",
       "//ui/gfx",
-      "//ui/native_theme",
       "//ui/views",
     ]
 
@@ -67,6 +67,8 @@ source_set("brave_ads") {
       "spacer_view.h",
       "text_ad_notification_view.cc",
       "text_ad_notification_view.h",
+      "window_util.cc",
+      "window_util.h",
     ]
 
     if (is_mac) {
diff --git a/browser/ui/brave_ads/ad_notification_control_buttons_view.cc b/browser/ui/brave_ads/ad_notification_control_buttons_view.cc
index c56e005a1252..cb907bc47f40 100644
--- a/browser/ui/brave_ads/ad_notification_control_buttons_view.cc
+++ b/browser/ui/brave_ads/ad_notification_control_buttons_view.cc
@@ -12,13 +12,13 @@
 #include "brave/browser/ui/brave_ads/ad_notification_view.h"
 #include "brave/browser/ui/brave_ads/padded_image_button.h"
 #include "brave/browser/ui/brave_ads/padded_image_view.h"
+#include "brave/browser/ui/brave_ads/window_util.h"
 #include "brave/grit/brave_generated_resources.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/base/metadata/metadata_impl_macros.h"
 #include "ui/compositor/layer.h"
 #include "ui/gfx/color_palette.h"
 #include "ui/gfx/paint_vector_icon.h"
-#include "ui/native_theme/native_theme.h"
 #include "ui/views/background.h"
 #include "ui/views/layout/box_layout.h"
 
@@ -82,7 +82,7 @@ void AdNotificationControlButtonsView::CreateInfoButton() {
 }
 
 void AdNotificationControlButtonsView::UpdateInfoButton() {
-  const bool should_use_dark_colors = GetNativeTheme()->ShouldUseDarkColors();
+  const bool should_use_dark_colors = ShouldUseDarkModeTheme();
 
   const gfx::ImageSkia image_skia = gfx::CreateVectorIcon(
       should_use_dark_colors ? kBraveAdsDarkModeInfoButtonIcon
@@ -106,7 +106,7 @@ void AdNotificationControlButtonsView::CreateCloseButton() {
 void AdNotificationControlButtonsView::UpdateCloseButton() {
   DCHECK(close_button_);
 
-  const bool should_use_dark_colors = GetNativeTheme()->ShouldUseDarkColors();
+  const bool should_use_dark_colors = ShouldUseDarkModeTheme();
 
   const gfx::ImageSkia image_skia = gfx::CreateVectorIcon(
       kBraveAdsCloseButtonIcon, kCloseButtonIconDipSize,
diff --git a/browser/ui/brave_ads/ad_notification_header_view.cc b/browser/ui/brave_ads/ad_notification_header_view.cc
index e34dcee595d1..319514081281 100644
--- a/browser/ui/brave_ads/ad_notification_header_view.cc
+++ b/browser/ui/brave_ads/ad_notification_header_view.cc
@@ -10,6 +10,7 @@
 #include "base/strings/utf_string_conversions.h"
 #include "brave/browser/ui/brave_ads/insets_util.h"
 #include "brave/browser/ui/brave_ads/spacer_view.h"
+#include "brave/browser/ui/brave_ads/window_util.h"
 #include "brave/grit/brave_generated_resources.h"
 #include "ui/accessibility/ax_enums.mojom.h"
 #include "ui/accessibility/ax_node_data.h"
@@ -19,7 +20,6 @@
 #include "ui/gfx/font_list.h"
 #include "ui/gfx/geometry/insets.h"
 #include "ui/gfx/geometry/size.h"
-#include "ui/native_theme/native_theme.h"
 #include "ui/views/border.h"
 #include "ui/views/controls/label.h"
 #include "ui/views/layout/flex_layout.h"
@@ -126,7 +126,7 @@ void AdNotificationHeaderView::CreateView(const int width) {
 }
 
 views::Label* AdNotificationHeaderView::CreateTitleLabel() {
-  const bool should_use_dark_colors = GetNativeTheme()->ShouldUseDarkColors();
+  const bool should_use_dark_colors = ShouldUseDarkModeTheme();
 
   views::Label* label = new views::Label();
 
@@ -159,7 +159,7 @@ views::Label* AdNotificationHeaderView::CreateTitleLabel() {
 }
 
 void AdNotificationHeaderView::UpdateTitleLabel() {
-  const bool should_use_dark_colors = GetNativeTheme()->ShouldUseDarkColors();
+  const bool should_use_dark_colors = ShouldUseDarkModeTheme();
 
   DCHECK(title_label_);
   title_label_->SetEnabledColor(should_use_dark_colors ? kDarkModeTitleColor
diff --git a/browser/ui/brave_ads/ad_notification_popup.cc b/browser/ui/brave_ads/ad_notification_popup.cc
index 6ce49c27ba69..6f0493071ee8 100644
--- a/browser/ui/brave_ads/ad_notification_popup.cc
+++ b/browser/ui/brave_ads/ad_notification_popup.cc
@@ -13,6 +13,7 @@
 #include "brave/browser/ui/brave_ads/ad_notification_view.h"
 #include "brave/browser/ui/brave_ads/ad_notification_view_factory.h"
 #include "brave/browser/ui/brave_ads/bounds_util.h"
+#include "brave/browser/ui/brave_ads/window_util.h"
 #include "brave/components/brave_ads/browser/features.h"
 #include "brave/components/brave_ads/common/pref_names.h"
 #include "brave/grit/brave_generated_resources.h"
@@ -36,7 +37,6 @@
 #include "ui/gfx/shadow_util.h"
 #include "ui/gfx/shadow_value.h"
 #include "ui/gfx/skia_paint_util.h"
-#include "ui/native_theme/native_theme.h"
 #include "ui/views/layout/box_layout.h"
 #include "ui/views/widget/widget.h"
 
@@ -212,7 +212,7 @@ void AdNotificationPopup::OnPaintBackground(gfx::Canvas* canvas) {
   gfx::Rect bounds(GetWidget()->GetLayer()->bounds());
   bounds.Inset(-GetShadowMargin());
 
-  const bool should_use_dark_colors = GetNativeTheme()->ShouldUseDarkColors();
+  const bool should_use_dark_colors = ShouldUseDarkModeTheme();
 
   // Draw border with drop shadow
   cc::PaintFlags border_flags;
diff --git a/browser/ui/brave_ads/ad_notification_view.cc b/browser/ui/brave_ads/ad_notification_view.cc
index b5604d47866b..3ed2f65294c4 100644
--- a/browser/ui/brave_ads/ad_notification_view.cc
+++ b/browser/ui/brave_ads/ad_notification_view.cc
@@ -17,7 +17,6 @@
 #include "ui/compositor/layer.h"
 #include "ui/gfx/geometry/rect.h"
 #include "ui/gfx/geometry/vector2d.h"
-#include "ui/native_theme/native_theme.h"
 #include "ui/views/view.h"
 
 namespace brave_ads {
diff --git a/browser/ui/brave_ads/text_ad_notification_view.cc b/browser/ui/brave_ads/text_ad_notification_view.cc
index 9344e2a89f83..d5f79ed58287 100644
--- a/browser/ui/brave_ads/text_ad_notification_view.cc
+++ b/browser/ui/brave_ads/text_ad_notification_view.cc
@@ -12,6 +12,7 @@
 #include "brave/browser/ui/brave_ads/ad_notification_control_buttons_view.h"
 #include "brave/browser/ui/brave_ads/ad_notification_header_view.h"
 #include "brave/browser/ui/brave_ads/insets_util.h"
+#include "brave/browser/ui/brave_ads/window_util.h"
 #include "build/build_config.h"
 #include "ui/gfx/color_palette.h"
 #include "ui/gfx/font.h"
@@ -19,7 +20,6 @@
 #include "ui/gfx/geometry/insets.h"
 #include "ui/gfx/geometry/size.h"
 #include "ui/gfx/text_constants.h"
-#include "ui/native_theme/native_theme.h"
 #include "ui/views/border.h"
 #include "ui/views/controls/label.h"
 #include "ui/views/layout/box_layout.h"
@@ -155,7 +155,7 @@ views::View* TextAdNotificationView::CreateBodyView(
 
 views::Label* TextAdNotificationView::CreateBodyLabel(
     const AdNotification& ad_notification) {
-  const bool should_use_dark_colors = GetNativeTheme()->ShouldUseDarkColors();
+  const bool should_use_dark_colors = ShouldUseDarkModeTheme();
 
   const std::u16string body = ad_notification.body();
 
@@ -194,7 +194,7 @@ views::Label* TextAdNotificationView::CreateBodyLabel(
 }
 
 void TextAdNotificationView::UpdateBodyLabel() {
-  const bool should_use_dark_colors = GetNativeTheme()->ShouldUseDarkColors();
+  const bool should_use_dark_colors = ShouldUseDarkModeTheme();
 
   DCHECK(body_label_);
   body_label_->SetEnabledColor(should_use_dark_colors ? kDarkModeBodyColor
diff --git a/browser/ui/brave_ads/window_util.cc b/browser/ui/brave_ads/window_util.cc
new file mode 100644
index 000000000000..239ed2172af9
--- /dev/null
+++ b/browser/ui/brave_ads/window_util.cc
@@ -0,0 +1,17 @@
+/* Copyright (c) 2021 The Brave Authors. All rights reserved.
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "brave/browser/ui/brave_ads/window_util.h"
+
+#include "brave/browser/themes/brave_dark_mode_utils.h"
+
+namespace brave_ads {
+
+bool ShouldUseDarkModeTheme() {
+  return dark_mode::GetActiveBraveDarkModeType() ==
+         dark_mode::BraveDarkModeType::BRAVE_DARK_MODE_TYPE_DARK;
+}
+
+}  // namespace brave_ads
diff --git a/browser/ui/brave_ads/window_util.h b/browser/ui/brave_ads/window_util.h
new file mode 100644
index 000000000000..238aae49088f
--- /dev/null
+++ b/browser/ui/brave_ads/window_util.h
@@ -0,0 +1,15 @@
+/* Copyright (c) 2021 The Brave Authors. All rights reserved.
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef BRAVE_BROWSER_UI_BRAVE_ADS_WINDOW_UTIL_H_
+#define BRAVE_BROWSER_UI_BRAVE_ADS_WINDOW_UTIL_H_
+
+namespace brave_ads {
+
+bool ShouldUseDarkModeTheme();
+
+}  // namespace brave_ads
+
+#endif  // BRAVE_BROWSER_UI_BRAVE_ADS_WINDOW_UTIL_H_