diff --git a/lib/pages/analytics/modules/air_quality/widgets/range_of_aqi_chart.dart b/lib/pages/analytics/modules/air_quality/widgets/range_of_aqi_chart.dart
index 9423c30d..08a036c0 100644
--- a/lib/pages/analytics/modules/air_quality/widgets/range_of_aqi_chart.dart
+++ b/lib/pages/analytics/modules/air_quality/widgets/range_of_aqi_chart.dart
@@ -16,8 +16,8 @@ class RangeOfAqiChart extends StatelessWidget {
   List<(List<double> values, Color color, Color? dotColor)> get _lines => [
         (
           chartData.map((e) => e.max).toList(),
-          const Color(0xFF962DFF),
-          const Color(0xFF5F00BD),
+          ColorsManager.maxPurple,
+          ColorsManager.maxPurpleDot,
         ),
         (
           chartData.map((e) => e.avg).toList(),
@@ -26,8 +26,8 @@ class RangeOfAqiChart extends StatelessWidget {
         ),
         (
           chartData.map((e) => e.min).toList(),
-          const Color(0xFF93AAFD),
-          const Color(0xFF023DFE),
+          ColorsManager.minBlue,
+          ColorsManager.minBlueDot,
         ),
       ];
 
diff --git a/lib/utils/color_manager.dart b/lib/utils/color_manager.dart
index c2e4e60d..41ceb29a 100644
--- a/lib/utils/color_manager.dart
+++ b/lib/utils/color_manager.dart
@@ -79,4 +79,8 @@ abstract class ColorsManager {
   static const Color unhealthyRed = Color(0xFFD40000);
   static const Color severePink = Color(0xFFD40094);
   static const Color hazardousPurple = Color(0xFFBA01FD);
+  static const Color maxPurple = Color(0xFF962DFF);
+  static const Color maxPurpleDot = Color(0xFF5F00BD);
+  static const Color minBlue = Color(0xFF93AAFD);
+  static const Color minBlueDot = Color(0xFF023DFE);
 }