Set colour of a Polyline in Google Maps v3?

How can I set the colour of a Google Maps Polyline?

var myRoutePath;
myRoutePath = new google.maps.Polyline({
  pat开发者_Go百科h: routeCoordinates,
  strokeColor: "#CC33FF",
  strokeWeight: 3
});     
myRoutePath.setMap(map);
// Reset colour
myRoutePath.setOptions({strokeColor: 'blue'});

The above doesn't show up as an error in Firebug, but it doesn't change the color either.

Thanks for your help.

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Basically looks correct to me. However, if this is your code verbatim then you immediately overwrite the color. Hence, I guess you are getting a blue polyline from the start. Try setting a timer to see the transition:

setTimeout(function () {
    myRoutePath.setOptions({strokeColor: 'blue'});
}, 3000);

---

Color names are still not supported as a color, use the hex version instead

myRoutePath.setOptions({strokeColor: '#0000FF'});