Change the subpage search text color to --paper-gray-800.

chrome/browser/resources/settings/settings_page/settings_subpage_search.html

Index: chrome/browser/resources/settings/settings_page/settings_subpage_search.html
diff --git a/chrome/browser/resources/settings/settings_page/settings_subpage_search.html b/chrome/browser/resources/settings/settings_page/settings_subpage_search.html
index b4a49b4270b7e06cd23bdc8ca7e271ed3bda78c4..0ee4f2408abd9af88326aa5b4adc462fd002a063 100644
--- a/chrome/browser/resources/settings/settings_page/settings_subpage_search.html
+++ b/chrome/browser/resources/settings/settings_page/settings_subpage_search.html
@@ -16,11 +16,18 @@
 
       #prompt,
       #searchInput {
-        color: var(--google-grey-500);
         font-size: 13px;
         line-height: 36px;
       }
 
+      #prompt {
+        color: var(--google-grey-500);
+      }
+
+      #searchInput {
+        color: var(--paper-grey-800);
+      }
+
       #clearSearch {
         -webkit-margin-end: -8px;
         -webkit-margin-start: 8px;