diff --git a/docs/assets/css/bootstrap.css b/docs/assets/css/bootstrap.css
index 9054f68d47..bcbe4d9dac 100644
--- a/docs/assets/css/bootstrap.css
+++ b/docs/assets/css/bootstrap.css
@@ -3039,8 +3039,8 @@ button.close {
 }
 
 .btn {
-  border-color: #ccc;
-  border-color: rgba(0, 0, 0, 0.1) rgba(0, 0, 0, 0.1) rgba(0, 0, 0, 0.25);
+  border-color: #c5c5c5;
+  border-color: rgba(0, 0, 0, 0.15) rgba(0, 0, 0, 0.15) rgba(0, 0, 0, 0.25);
 }
 
 .btn-primary {
diff --git a/less/buttons.less b/less/buttons.less
index eb0290d8e7..f3cb1bdef8 100644
--- a/less/buttons.less
+++ b/less/buttons.less
@@ -129,8 +129,8 @@
 // -------------------------
 .btn {
   // reset here as of 2.0.3 due to Recess property order
-  border-color: #ccc;
-  border-color: rgba(0,0,0,.1) rgba(0,0,0,.1) rgba(0,0,0,.25);
+  border-color: #c5c5c5;
+  border-color: rgba(0,0,0,.15) rgba(0,0,0,.15) rgba(0,0,0,.25);
 }
 .btn-primary {
   .buttonBackground(@btnPrimaryBackground, @btnPrimaryBackgroundHighlight);