diff --git a/index.html b/index.html
index cf3c830..0e1cfc2 100644
--- a/index.html
+++ b/index.html
@@ -57,13 +57,17 @@
 		}
 
 		function rgb_to_array(str) {
-			m = str.match(/^#([0-9a-f]{6})$/i)[1];
+			matches = str.match(/^#([0-9a-f]{6})$/i)
+			if (!matches) {
+				return [0,0,0]
+			}
+			m = matches[1];
 			if(m) {
 				return [
 					parseInt(m.substr(0,2),16),
-				        parseInt(m.substr(2,2),16),
-				        parseInt(m.substr(4,2),16)
-			        ];
+					parseInt(m.substr(2,2),16),
+					parseInt(m.substr(4,2),16)
+				];
 			}
 		}