diff --git a/tests/rustdoc-gui/sidebar-source-code.goml b/tests/rustdoc-gui/sidebar-source-code.goml
index 520b2c59b0f..2cb88817884 100644
--- a/tests/rustdoc-gui/sidebar-source-code.goml
+++ b/tests/rustdoc-gui/sidebar-source-code.goml
@@ -25,24 +25,24 @@ call-function: (
     "check-colors",
     {
         "theme": "ayu",
-        "color": "rgb(197, 197, 197)",
-        "background_color": "rgb(20, 25, 31)",
+        "color": "#c5c5c5",
+        "background_color": "#14191f",
     }
 )
 call-function: (
     "check-colors",
     {
         "theme": "dark",
-        "color": "rgb(221, 221, 221)",
-        "background_color": "rgb(80, 80, 80)",
+        "color": "#ddd",
+        "background_color": "#505050",
     }
 )
 call-function: (
     "check-colors",
     {
         "theme": "light",
-        "color": "rgb(0, 0, 0)",
-        "background_color": "rgb(245, 245, 245)",
+        "color": "black",
+        "background_color": "#F5F5F5",
     }
 )