Rotating paths, hue shifting, and blending modes.
<script type="text/paperscript" canvas="canvas-0005">
var color = new Color('#0074d9');
color.alpha = 0.6;
var circle = new Path.Circle({
center: [100, 100],
radius: 20,
fillColor: color
});
circle.scale(1.5, 3.5);
for (i = 0; i < 360; i += 60) {
var newCircle = circle.clone();
newCircle.fillColor.hue += i;
newCircle.blendMode = 'screen';
newCircle.rotate(i, [100, 150]);
}
circle.remove();
project.activeLayer.position = view.center;
</script>
<canvas id="canvas-0005" height="250"></canvas>