diff --git a/Tests/LibWeb/Text/expected/css/box-shadow-resolves-length-functions.txt b/Tests/LibWeb/Text/expected/css/box-shadow-resolves-length-functions.txt
index c6350fa96a..5293c66b8c 100644
--- a/Tests/LibWeb/Text/expected/css/box-shadow-resolves-length-functions.txt
+++ b/Tests/LibWeb/Text/expected/css/box-shadow-resolves-length-functions.txt
@@ -1 +1 @@
-0 calc(5px - 10px) 0 calc(2px + 3px) => #000000ff 0px -5px 0px 5px
+0 calc(5px - 10px) 0 calc(2px + 3px) => rgb(0, 0, 0) 0px -5px 0px 5px
diff --git a/Userland/Libraries/LibWeb/CSS/StyleValues/ShadowStyleValue.cpp b/Userland/Libraries/LibWeb/CSS/StyleValues/ShadowStyleValue.cpp
index 14b5680c5e..13a255c53e 100644
--- a/Userland/Libraries/LibWeb/CSS/StyleValues/ShadowStyleValue.cpp
+++ b/Userland/Libraries/LibWeb/CSS/StyleValues/ShadowStyleValue.cpp
@@ -7,14 +7,16 @@
  * SPDX-License-Identifier: BSD-2-Clause
  */
 
-#include "ShadowStyleValue.h"
+#include <LibWeb/CSS/Serialize.h>
+#include <LibWeb/CSS/StyleValues/ShadowStyleValue.h>
 
 namespace Web::CSS {
 
 String ShadowStyleValue::to_string() const
 {
     StringBuilder builder;
-    builder.appendff("{} {} {} {} {}", m_properties.color.to_string(), m_properties.offset_x->to_string(), m_properties.offset_y->to_string(), m_properties.blur_radius->to_string(), m_properties.spread_distance->to_string());
+    serialize_a_srgb_value(builder, m_properties.color);
+    builder.appendff(" {} {} {} {}", m_properties.offset_x->to_string(), m_properties.offset_y->to_string(), m_properties.blur_radius->to_string(), m_properties.spread_distance->to_string());
     if (m_properties.placement == ShadowPlacement::Inner)
         builder.append(" inset"sv);
     return MUST(builder.to_string());