var chart10 = c3.generate({ bindto: '#donutChart', data: { columns: [ ['Likes', 60], ['Shares', 30], ['Clicks', 15], ], type : 'donut', colors: { Likes: '#1a8e5f', Shares: '#262b31', Clicks: '#434950', }, onclick: function (d, i) { console.log("onclick", d, i); }, onmouseover: function (d, i) { console.log("onmouseover", d, i); }, onmouseout: function (d, i) { console.log("onmouseout", d, i); } }, donut: { title: "Clicks" }, });