Toning down the blue by a few points.

src/doc/assets/less/site/bootstrap/variables.less

@@ -45,7 +45,7 @@
 @purple-light:          #c3b8f4;
 @purple-lighter:        #fbf5ff;
 
-@fa-green:              #00E;
+@fa-green:              #1616e5;
 @fa-green-dark:         darken(@fa-green, 10%);
 
 @jumbotron-border:      mix(@fa-green, @fa-green-dark, 75%);