diff --git a/src/display/color/RGBToString.js b/src/display/color/RGBToString.js
index d25de69a2..3bb124441 100644
--- a/src/display/color/RGBToString.js
+++ b/src/display/color/RGBToString.js
@@ -27,7 +27,7 @@ var RGBToString = function (r, g, b, a, prefix)
 
     if (prefix === '#')
     {
-        return '#' + ((1 << 24) + (r << 16) + (g << 8) + b).toString(16).slice(1);
+        return '#' + ((1 << 24) + (r << 16) + (g << 8) + b).toString(16).slice(1, 7);
     }
     else
     {