diff --git a/Tests/LibWeb/Screenshot/css-color-functions.html b/Tests/LibWeb/Screenshot/css-color-functions.html
index bb42acaf997..df4f0bf4927 100644
--- a/Tests/LibWeb/Screenshot/css-color-functions.html
+++ b/Tests/LibWeb/Screenshot/css-color-functions.html
@@ -36,6 +36,9 @@
 <div style="background-color: rgba(-20%, 0%, 300%, -50%);">
     <p>legacy rgba with out-of-range percentages (should be clamped)</p>
 </div>
+<div style="background-color: rgb(10% 50% 90%);">
+    <p>modern rgb with percentages (round away from 0)</p>
+</div>
 <div style="background-color: rgb(10 20% 30);">
     <p>modern rgb with mixed types</p>
 </div>
diff --git a/Tests/LibWeb/Screenshot/images/css-color-functions-ref.png b/Tests/LibWeb/Screenshot/images/css-color-functions-ref.png
index 464bcb783fb..d89575b176d 100644
Binary files a/Tests/LibWeb/Screenshot/images/css-color-functions-ref.png and b/Tests/LibWeb/Screenshot/images/css-color-functions-ref.png differ
diff --git a/Userland/Libraries/LibWeb/CSS/StyleValues/CSSRGB.cpp b/Userland/Libraries/LibWeb/CSS/StyleValues/CSSRGB.cpp
index 6f3d4f96305..85f1531a17e 100644
--- a/Userland/Libraries/LibWeb/CSS/StyleValues/CSSRGB.cpp
+++ b/Userland/Libraries/LibWeb/CSS/StyleValues/CSSRGB.cpp
@@ -25,14 +25,14 @@ Color CSSRGB::to_color(Optional<Layout::NodeWithStyle const&>) const
             return normalized(style_value.as_number().number());
 
         if (style_value.is_percentage())
-            return normalized(style_value.as_percentage().value() * 2.55);
+            return normalized(style_value.as_percentage().value() * 255 / 100);
 
         if (style_value.is_math()) {
             auto const& calculated = style_value.as_math();
             if (calculated.resolves_to_number())
                 return normalized(calculated.resolve_number().value());
             if (calculated.resolves_to_percentage())
-                return normalized(calculated.resolve_percentage().value().value() * 2.55);
+                return normalized(calculated.resolve_percentage().value().value() * 255 / 100);
         }
 
         if (style_value.is_keyword() && style_value.to_keyword() == Keyword::None)