diff --git a/src/Transformer/Utilities/CyanMagentaYellowKeyToHueSaturationValue.php b/src/Transformer/Utilities/CyanMagentaYellowKeyToHueSaturationValue.php
index 12ed5e2..4613f75 100644
--- a/src/Transformer/Utilities/CyanMagentaYellowKeyToHueSaturationValue.php
+++ b/src/Transformer/Utilities/CyanMagentaYellowKeyToHueSaturationValue.php
@@ -55,6 +55,9 @@ class CyanMagentaYellowKeyToHueSaturationValue
         $this->minCmyProperty = min($this->cyan, $this->magenta, $this->yellow);
 
         $this->hue = $this->buildHueAmount();
+        if ($this->hue === 1.0) {
+            $this->hue = 0.0;
+        }
         $this->saturation = $this->maxCmyProperty;
         $this->value = 1 - $this->key;
     }
@@ -71,7 +74,7 @@ class CyanMagentaYellowKeyToHueSaturationValue
 
     protected function buildHueAmount(): float
     {
-        if ($this->maxCmyProperty === 0) {
+        if ($this->maxCmyProperty === 0.0) {
             return 0.0;
         }
 
@@ -88,10 +91,6 @@ class CyanMagentaYellowKeyToHueSaturationValue
      */
     private function hueAmount(string $property): float
     {
-        if ($this->maxCmyProperty === 0.0) {
-            return 0.0;
-        }
-
         static $amount_share = 2.0;
 
         $divisor = $this->maxCmyProperty - $this->minCmyProperty;