JS Canvas Trippy Color Changing Paint Tool SRC

<!DOCTYPE html>
<html>
<body onmousemove="drawe();" onclick="alert('Nice Drawing!!');">
<canvas id="myCanvas" width="1000" height="1000" style="border:1px;background-color:black">
Your browser does not support the canvas element.
</canvas>
<script>
function drawe(){
var possible = "FABCGDE0123456789";
var text = "";
var canvas = document.getElementById("myCanvas");
var ctx = canvas.getContext("2d");
for(var i=0; i!=6; i++)
text+=possible.charAt(Math.floor(Math.random()*possible.length))
ctx.strokeStyle="#"+text;
ctx.moveTo(event.x+4,event.y-4);
ctx.lineTo(event.x+4,event.y-1);
ctx.stroke();
}
</script>
</body>
</html>