第一种方式
option下

color:['#45C2E0', '#C1EBDD', '#FFC851','#5A5476','#1869A0','#FF9393'],

整体代码如下:

option = {tooltip: {trigger: 'item'},legend: {top: '5%',left: 'center'},color:['#45C2E0', '#C1EBDD', '#FFC851','#5A5476','#1869A0','#FF9393'],series: [{name: '城市',type: 'pie',radius: ['50%', '70%'],avoidLabelOverlap: false,label: {show: false,position: 'center'},emphasis: {label: {show: true,fontSize: '40',fontWeight: 'bold'}},labelLine: {show: false},data: [{value: 1048, name: '北京'},{value: 735, name: '上海'},{value: 580, name: '广州'},{value: 484, name: '深圳'},{value: 300, name: '杭州'},{value:456,name:"雄安"}]}]};

效果如下:

第二种方式
series下

itemStyle: {normal: {color: function(colors) {var colorList = ['#45C2E0', '#C1EBDD', '#FFC851','#5A5476','#1869A0','#FF9393'];return colorList[colors.dataIndex]}}},

整体代码如下:

option = {backgroundColor: '#2c343c',title: {text: 'Customized Pie',left: 'center',top: 20,textStyle: {color: '#ccc'}},tooltip: {trigger: 'item'},visualMap: {show: false,min: 80,max: 600,inRange: {colorLightness: [0, 1]}},series: [{name: '访问来源',type: 'pie',radius: '55%',center: ['50%', '50%'],data: [{value: 335, name: '直接访问'},{value: 310, name: '邮件营销'},{value: 274, name: '联盟广告'},{value: 235, name: '视频广告'},{value: 400, name: '搜索引擎'}].sort(function (a, b) { return a.value - b.value; }),roseType: 'radius',label: {color: 'rgba(255, 255, 255, 0.3)'},labelLine: {lineStyle: {color: 'rgba(255, 255, 255, 0.3)'},smooth: 0.2,length: 10,length2: 20},itemStyle: {normal: {color: function(colors) {var colorList = ['#45C2E0', '#C1EBDD', '#FFC851','#5A5476','#1869A0','#FF9393'];return colorList[colors.dataIndex]}},shadowBlur: 200,shadowColor: 'rgba(0, 0, 0, 0.5)'},animationType: 'scale',animationEasing: 'elasticOut',animationDelay: function (idx) {return Math.random() * 200;}}]};

效果如下:

第三种方式
data下

itemStyle: {color:"black"}

整体代码如下:

option = {title: {text: '某站点用户访问来源',subtext: '纯属虚构',left: 'center'},tooltip: {trigger: 'item'},legend: {orient: 'vertical',left: 'left',},series: [{name: '访问来源',type: 'pie',radius: '50%',data: [{value: 1048, name: '搜索引擎',itemStyle: {color:"black"}},{value: 735, name: '直接访问'},{value: 580, name: '邮件营销'},{value: 484, name: '联盟广告'},{value: 300, name: '视频广告'}],emphasis: {itemStyle: {shadowBlur: 10,shadowOffsetX: 0,shadowColor: 'rgba(0, 0, 0, 0.5)'}}}]};

效果如下: