diff --git a/addons/web_graph/static/src/css/graph.css b/addons/web_graph/static/src/css/graph.css
index cc738bd73eb..d1b80274738 100644
--- a/addons/web_graph/static/src/css/graph.css
+++ b/addons/web_graph/static/src/css/graph.css
@@ -24,7 +24,7 @@
 }
 
 td.graph_border {
-  color: #669;
+  color: #039;
   text-align: left;
   border-right: 1px solid #6678b1;
   white-space: nowrap;