自定义颜色与样式

通过 Chart.js 提供的丰富配置，可以轻松自定义图表的颜色和样式。你可以设置数据集的背景色、边框色、线条样式，甚至调整图例和坐标轴的字体颜色和大小，打造符合需求的个性化图表。

(function () {
  const ctx = document.getElementById("customStyleChart").getContext("2d");
  const customStyleChart = new Chart(ctx, {
    type: "bar",
    data: {
      labels: ["红", "蓝", "黄", "绿", "紫", "橙"],
      datasets: [
        {
          label: "自定义样式数据",
          data: [10, 20, 15, 25, 18, 30],
          backgroundColor: [
            "rgba(255, 99, 132, 0.8)",
            "rgba(54, 162, 235, 0.8)",
            "rgba(255, 206, 86, 0.8)",
            "rgba(75, 192, 192, 0.8)",
            "rgba(153, 102, 255, 0.8)",
            "rgba(255, 159, 64, 0.8)",
          ],
          borderColor: [
            "rgba(255, 99, 132, 1)",
            "rgba(54, 162, 235, 1)",
            "rgba(255, 206, 86, 1)",
            "rgba(75, 192, 192, 1)",
            "rgba(153, 102, 255, 1)",
            "rgba(255, 159, 64, 1)",
          ],
          borderWidth: 2,
        },
      ],
    },
    options: {
      responsive: true,
      plugins: {
        legend: {
          display: true,
          labels: {
            color: "#333",
            font: {
              size: 14,
              weight: "bold",
            },
          },
        },
        tooltip: {
          enabled: true,
          backgroundColor: "rgba(0,0,0,0.7)",
          titleFont: { size: 16 },
          bodyFont: { size: 14 },
        },
      },
      scales: {
        x: {
          ticks: { color: "#555", font: { size: 12 } },
          grid: { color: "#eee" },
        },
        y: {
          ticks: { color: "#555", font: { size: 12 } },
          grid: { color: "#eee" },
        },
      },
    },
  });
})();

在线代码演示

<!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="UTF-8" />
<title>Chart.js 自定义颜色与样式示例</title>
<script src="https://cdn.jsdelivr.net/npm/chart.js&quot;&gt;&lt;/script&gt;
<style>
body {
max-width: 700px;
margin: 2rem auto;
font-family: Arial, sans-serif;
background: #fafafa;
padding: 1rem;
}
canvas {
  background: #fff;
  border: 1px solid #ccc;
  display: block;
  margin: 0 auto;
}

</style>
</head>
<body>
<canvas id="customStyleChart" width="700" height="400"></canvas>
<script>
(function () {
const ctx = document.getElementById(‘customStyleChart’).getContext(‘2d’);
new Chart(ctx, {
type: ‘bar’,
data: {
labels: [‘红’, ‘蓝’, ‘黄’, ‘绿’, ‘紫’, ‘橙’],
datasets: [{
label: ‘自定义样式数据’,
data: [10, 20, 15, 25, 18, 30],
backgroundColor: [
‘rgba(255, 99, 132, 0.8)’,
‘rgba(54, 162, 235, 0.8)’,
‘rgba(255, 206, 86, 0.8)’,
‘rgba(75, 192, 192, 0.8)’,
‘rgba(153, 102, 255, 0.8)’,
‘rgba(255, 159, 64, 0.8)’
],
borderColor: [
‘rgba(255, 99, 132, 1)’,
‘rgba(54, 162, 235, 1)’,
‘rgba(255, 206, 86, 1)’,
‘rgba(75, 192, 192, 1)’,
‘rgba(153, 102, 255, 1)’,
‘rgba(255, 159, 64, 1)’
],
borderWidth: 2
}]
},
options: {
responsive: true,
plugins: {
legend: {
display: true,
labels: {
color: ‘#333’,
font: {
size: 14,
weight: ‘bold’
}
}
},
tooltip: {
enabled: true,
backgroundColor: ‘rgba(0,0,0,0.7)’,
titleFont: { size: 16 },
bodyFont: { size: 14 }
}
},
scales: {
x: {
ticks: { color: ‘#555’, font: { size: 12 } },
grid: { color: ‘#eee’ }
},
y: {
ticks: { color: ‘#555’, font: { size: 12 } },
grid: { color: ‘#eee’ }
}
}
}
});
})();
</script>
</body>
</html>

自定义颜色与样式

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