LunaCodeGirl · February 1, 2014 01:43 · Feb 1, 2014
diff --git a/HexadecimalColorRegex b/HexadecimalColorRegex
@@ -0,0 +1,11 @@
+^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})$
+
+
+^		 #start of the line
+ #		 #  must constains a "#" symbols
+ (		 #  start of group #1
+  [A-Fa-f0-9]{6} #    any strings in the list, with length of 6
+  |		 #    ..or
+  [A-Fa-f0-9]{3} #    any strings in the list, with length of 3
+ )		 #  end of group #1 
+$		 #end of the line