diff --git a/src/Meritoo/Common/Exception/IncorrectColorHexLengthException.php b/src/Meritoo/Common/Exception/Regex/IncorrectColorHexLengthException.php
similarity index 95%
rename from src/Meritoo/Common/Exception/IncorrectColorHexLengthException.php
rename to src/Meritoo/Common/Exception/Regex/IncorrectColorHexLengthException.php
index bcd5bc3..89ee485 100644
--- a/src/Meritoo/Common/Exception/IncorrectColorHexLengthException.php
+++ b/src/Meritoo/Common/Exception/Regex/IncorrectColorHexLengthException.php
@@ -6,7 +6,7 @@
  * file that was distributed with this source code.
  */
 
-namespace Meritoo\Common\Exception;
+namespace Meritoo\Common\Exception\Regex;
 
 /**
  * An exception used while length of given hexadecimal value of color is incorrect
diff --git a/src/Meritoo/Common/Exception/InvalidColorHexValueException.php b/src/Meritoo/Common/Exception/Regex/InvalidColorHexValueException.php
similarity index 79%
rename from src/Meritoo/Common/Exception/InvalidColorHexValueException.php
rename to src/Meritoo/Common/Exception/Regex/InvalidColorHexValueException.php
index 2249447..f17771a 100644
--- a/src/Meritoo/Common/Exception/InvalidColorHexValueException.php
+++ b/src/Meritoo/Common/Exception/Regex/InvalidColorHexValueException.php
@@ -6,10 +6,10 @@
  * file that was distributed with this source code.
  */
 
-namespace Meritoo\Common\Exception;
+namespace Meritoo\Common\Exception\Regex;
 
 /**
- * An exception used while given hexadecimal value of color is incorrect
+ * An exception used while given hexadecimal value of color is invalid
  *
  * @author    Krzysztof Niziol <krzysztof.niziol@meritoo.pl>
  * @copyright Meritoo.pl
@@ -19,11 +19,11 @@ class InvalidColorHexValueException extends \Exception
     /**
      * Class constructor
      *
-     * @param string $color Incorrect hexadecimal value of color
+     * @param string $color Invalid hexadecimal value of color
      */
     public function __construct($color)
     {
-        $message = sprintf('Hexadecimal value of color \'%s\' is incorrect. Is there everything ok?', $color);
+        $message = sprintf('Hexadecimal value of color \'%s\' is invalid. Is there everything ok?', $color);
         parent::__construct($message);
     }
 }
diff --git a/src/Meritoo/Common/Utilities/Regex.php b/src/Meritoo/Common/Utilities/Regex.php
index e6ac473..123cba2 100644
--- a/src/Meritoo/Common/Utilities/Regex.php
+++ b/src/Meritoo/Common/Utilities/Regex.php
@@ -8,8 +8,8 @@
 
 namespace Meritoo\Common\Utilities;
 
-use Meritoo\Common\Exception\IncorrectColorHexLengthException;
-use Meritoo\Common\Exception\InvalidColorHexValueException;
+use Meritoo\Common\Exception\Regex\IncorrectColorHexLengthException;
+use Meritoo\Common\Exception\Regex\InvalidColorHexValueException;
 
 /**
  * Useful regular expressions methods
diff --git a/tests/Meritoo/Common/Tests/Utilities/MiscellaneousTest.php b/tests/Meritoo/Common/Tests/Utilities/MiscellaneousTest.php
index b722f4a..dbe7ff8 100644
--- a/tests/Meritoo/Common/Tests/Utilities/MiscellaneousTest.php
+++ b/tests/Meritoo/Common/Tests/Utilities/MiscellaneousTest.php
@@ -9,8 +9,8 @@
 namespace Meritoo\Common\Tests\Utilities;
 
 use Generator;
-use Meritoo\Common\Exception\IncorrectColorHexLengthException;
-use Meritoo\Common\Exception\InvalidColorHexValueException;
+use Meritoo\Common\Exception\Regex\IncorrectColorHexLengthException;
+use Meritoo\Common\Exception\Regex\InvalidColorHexValueException;
 use Meritoo\Common\Utilities\Locale;
 use Meritoo\Common\Utilities\Miscellaneous;
 use Meritoo\Common\Utilities\TestCase;