title: Regex pattern to change the color in all occurences
body: <pre><code>&quot;&lt;p&gt;&lt;span style=&quot;color: rgb(255, 255, 255);&quot;&gt;Beautifully hand designed brochure with arresting imagery created by the designers&lt;/span&gt;&lt;em style=&quot;color: rgb(255, 255, 255);&quot;&gt; eminem.&lt;/em&gt;&lt;/p&gt;&quot;
  </code></pre>
  <pre><code>&quot;&lt;p&gt;&lt;span style=&quot;color: rgb(105,105,105);&quot;&gt;Beautifully hand designed brochure with arresting imagery created by the designers&lt;/span&gt;&lt;em style=&quot;color: rgb(255, 255, 255);&quot;&gt; eminem.&lt;/em&gt;&lt;/p&gt;&quot;
  </code></pre>
  <p>I want to change the rgb color (128,128,128) by making a script. please help me to solve this</p>