diff --git a/build/docs/content/04-html.md b/build/docs/content/04-html.md
index 3f147df8..f0134ed2 100644
--- a/build/docs/content/04-html.md
+++ b/build/docs/content/04-html.md
@@ -103,6 +103,7 @@ There are some limitations:
 * `footer.html` CSS properties override the ones from `header.html`
 * only fonts installed in the Docker image are loaded (see the [fonts section](#fonts))
 * images only work using a `base64` encoded source (`<img src="data:image/png;base64, iVBORw0K... />`)
+* `background-color` and `color` CSS properties require an additional `-webkit-print-color-adjust: exact` CSS property in order to work
 
 ### cURL
 
diff --git a/docs/index.html b/docs/index.html
index e71b0f4a..cd6b0b7a 100755
--- a/docs/index.html
+++ b/docs/index.html
@@ -483,6 +483,7 @@ Respectively, a file named <code>header.html</code> and <code>footer.html</code>
 <li><code>footer.html</code> CSS properties override the ones from <code>header.html</code></li>
 <li>only fonts installed in the Docker image are loaded (see the <a href="#fonts">fonts section</a>)</li>
 <li>images only work using a <code>base64</code> encoded source (<code>&lt;img src=&#34;data:image/png;base64, iVBORw0K... /&gt;</code>)</li>
+<li><code>background-color</code> and <code>color</code> CSS properties require an additional <code>-webkit-print-color-adjust: exact</code> CSS property in order to work</li>
 </ul>
 
 <h3 class="Heading"><a class="Anchor" aria-hidden="true" id="html.header_and_footer.c_url" href="#html.header_and_footer.c_url">