diff --git a/lib/torque/renderer/ball.js b/lib/torque/renderer/ball.js
index 47f172d..b6d23dc 100644
--- a/lib/torque/renderer/ball.js
+++ b/lib/torque/renderer/ball.js
@@ -213,8 +213,10 @@ BallRenderer.prototype = {
 		    			for (var n = 0, ln = neighbors.length; n<ln; ++n){
 		    				var index = neighbors[n];
 		    				if(index>0 && (contour[index+3] === 0 || contour[index+3] !== contour[i+3])){
-		    					iso[index+3] = contour[i+3];
-		    					iso[index] = 150;
+		    					iso[index + 3] = contour[i+3];
+		    					iso[index] = 153;
+		    					iso[index + 1] = 60;
+		    					iso[index + 2] = 243;
 		    				}
 		    			}
 		    		}