diff --git a/doc/api_assets/style.css b/doc/api_assets/style.css
index d40253e5ae1d4a..86558754c97d6f 100644
--- a/doc/api_assets/style.css
+++ b/doc/api_assets/style.css
@@ -342,7 +342,7 @@ li code {
 }
 
 span.type {
-  color: #222;
+  color: #00b192;
 }
 
 #content {