Add ContrastColorBlackWhite ColorHelper #45

ghost1372 · ghost1372 · commit 14921cc89903 · 2025-03-22T03:22:44.000+03:30
diff --git a/dev/DevWinUI/Extensions/Extensions.cs b/dev/DevWinUI/Extensions/Extensions.cs
@@ -1,6 +1,16 @@
 ﻿namespace DevWinUI;
 public static partial class Extensions
 {
+    /// <summary>
+    /// Finds the best contrasting color (black or white)
+    /// </summary>
+    /// <param name="color"></param>
+    /// <returns></returns>
+    public static Color ContrastColorBlackWhite(this Color color)
+    {
+        return ColorHelper.ContrastColorBlackWhite(color);
+    }
+
     /// <summary>
     /// Converts a hexadecimal color string into a SolidColorBrush object.
     /// </summary>
diff --git a/dev/DevWinUI/Helpers/ColorHelper.cs b/dev/DevWinUI/Helpers/ColorHelper.cs
@@ -274,4 +274,15 @@ public static float GetSaturationFromColor(Color color)
 
         return saturation;
     }
+
+    /// <summary>
+    /// Finds the best contrasting color (black or white)
+    /// </summary>
+    /// <param name="color"></param>
+    /// <returns></returns>
+    public static Color ContrastColorBlackWhite(Color color)
+    {
+        double luma = ((0.299 * color.R) + (0.587 * color.G) + (0.114 * color.B)) / (double)255;
+        return luma > 0.5 ? Colors.Black : Colors.White;
+    }
 }
