<canvas id="piechart" width="200" height="200"></canvas>

<script>

    var greenOne = "#95B524";
    var greenTwo = "#AFCC4C";
    var greenThree = "#C1DD54";

    function CreatePieChart()
    {
        var chart = document.getElementById('piechart');
        var canvas = chart.getContext('2d');
        canvas.clearRect(0, 0, chart.width, chart.height);

        var total = 100;

        var a = 3;
        var b = 4;
        var c = 3;

        for (var i = 0; i < 3; i++)
        {
            canvas.fillStyle = "#95B524";
            canvas.beginPath();
            canvas.strokeStyle = "#fff";
            canvas.lineWidth = 3;
            canvas.arc(100,100,100,0,Math.PI*2,true);
            canvas.closePath();
            canvas.stroke();
            canvas.fill();
        }
    }
    CreatePieChart();

</script>