diff --git a/library/Phue/Helper/ColorConversion.php b/library/Phue/Helper/ColorConversion.php
index 4e0dde0..97529d6 100644
--- a/library/Phue/Helper/ColorConversion.php
+++ b/library/Phue/Helper/ColorConversion.php
@@ -82,6 +82,7 @@ public static function convertXYToRGB($x, $y, $bri = 255)
         $color['green'] = -$xyz['x'] * 0.707196 + $xyz['y'] * 1.655397 + $xyz['z'] * 0.036152;
         $color['blue'] = $xyz['x'] * 0.051713 - $xyz['y'] * 0.121364 + $xyz['z'] * 1.011530;
 
+        $maxValue = 0;
         foreach ($color as $key => $normalized) {
             // Apply reverse gamma correction
             if ($normalized <= 0.0031308) {
@@ -89,7 +90,16 @@ public static function convertXYToRGB($x, $y, $bri = 255)
             } else {
                 $color[$key] = (1.0 + 0.055) * pow($normalized, 1.0 / 2.4) - 0.055;
             }
-
+            $color[$key] = max(0,$color[$key]);
+            if($maxValue < $color[$key]){
+                $maxValue = $color[$key];
+            }
+            
+        }
+        foreach ($color as $key => $normalized) {
+            if($maxValue > 1){
+                $color[$key] /= $maxValue;
+            }
             // Scale back from a maximum of 1 to a maximum of 255
             $color[$key] = round($color[$key] * 255);
         }