diff --git a/src/Analyzers/PixelColorAnalyzer.php b/src/Analyzers/PixelColorAnalyzer.php
index aa91b00..746e7d0 100644
--- a/src/Analyzers/PixelColorAnalyzer.php
+++ b/src/Analyzers/PixelColorAnalyzer.php
@@ -36,7 +36,7 @@ protected function colorAt(ColorspaceInterface $colorspace, VipsImage $vipsImage
         return $this->driver()
             ->colorProcessor($colorspace)
             ->nativeToColor(array_map(
-                fn(int|float $value): int => (int) min($value, 255),
+                fn(int|float $value): int => (int) max(min($value, 255), 0),
                 $vipsImage->getpoint($x, $y)
             ));
     }