diff --git a/packages/client/package.json b/packages/client/package.json
index 355de401e..7bc74a1c1 100644
--- a/packages/client/package.json
+++ b/packages/client/package.json
@@ -45,6 +45,7 @@
 		"broadcast-channel": "4.9.0",
 		"chart.js": "3.7.0",
 		"chartjs-adapter-date-fns": "2.0.0",
+		"chartjs-plugin-gradient": "0.2.1",
 		"chartjs-plugin-zoom": "1.2.0",
 		"compare-versions": "4.1.3",
 		"content-disposition": "0.5.4",
diff --git a/packages/client/src/components/chart.vue b/packages/client/src/components/chart.vue
index a273cc946..a0a4755d1 100644
--- a/packages/client/src/components/chart.vue
+++ b/packages/client/src/components/chart.vue
@@ -29,6 +29,7 @@ import {
 import 'chartjs-adapter-date-fns';
 import { enUS } from 'date-fns/locale';
 import zoomPlugin from 'chartjs-plugin-zoom';
+import gradient from 'chartjs-plugin-gradient';
 import * as os from '@/os';
 import { defaultStore } from '@/store';
 import MkChartTooltip from '@/components/chart-tooltip.vue';
@@ -49,6 +50,7 @@ Chart.register(
 	SubTitle,
 	Filler,
 	zoomPlugin,
+	gradient,
 );
 
 const sum = (...arr) => arr.reduce((r, a) => r.map((b, i) => a[i] + b));
@@ -191,6 +193,8 @@ export default defineComponent({
 			// フォントカラー
 			Chart.defaults.color = getComputedStyle(document.documentElement).getPropertyValue('--fg');
 
+			const maxes = data.series.map((x, i) => Math.max(...x.data.map(d => d.y)));
+
 			chartInstance = new Chart(chartEl.value, {
 				type: props.bar ? 'bar' : 'line',
 				data: {
@@ -206,6 +210,15 @@ export default defineComponent({
 						borderDash: x.borderDash || [],
 						borderJoinStyle: 'round',
 						backgroundColor: alpha(x.color ? x.color : getColor(i), 0.1),
+						gradient: {
+							backgroundColor: {
+								axis: 'y',
+								colors: {
+									0: alpha(x.color ? x.color : getColor(i), 0),
+									[maxes[i]]: alpha(x.color ? x.color : getColor(i), 0.1),
+								},
+							},
+						},
 						barPercentage: 0.9,
 						categoryPercentage: 0.9,
 						fill: x.type === 'area',
@@ -312,6 +325,7 @@ export default defineComponent({
 								},
 							}
 						},
+						gradient,
 					},
 				},
 				plugins: [{
diff --git a/packages/client/yarn.lock b/packages/client/yarn.lock
index b1013c578..567024144 100644
--- a/packages/client/yarn.lock
+++ b/packages/client/yarn.lock
@@ -1579,6 +1579,11 @@ chartjs-adapter-date-fns@2.0.0:
   resolved "https://registry.yarnpkg.com/chartjs-adapter-date-fns/-/chartjs-adapter-date-fns-2.0.0.tgz#5e53b2f660b993698f936f509c86dddf9ed44c6b"
   integrity sha512-rmZINGLe+9IiiEB0kb57vH3UugAtYw33anRiw5kS2Tu87agpetDDoouquycWc9pRsKtQo5j+vLsYHyr8etAvFw==
 
+chartjs-plugin-gradient@0.2.1:
+  version "0.2.1"
+  resolved "https://registry.yarnpkg.com/chartjs-plugin-gradient/-/chartjs-plugin-gradient-0.2.1.tgz#9d6d4f1a04a8d2ffca769adb068df4d0678b8f8f"
+  integrity sha512-hcNQ+B0LuiK9QXhbEc0tUtW3s0a8lOBUJViOCw2xHbnNCIp3Pul/tQHR1aIjMo3HiHu4nOb7NKqFd4NTUEsi4Q==
+
 chartjs-plugin-zoom@1.2.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/chartjs-plugin-zoom/-/chartjs-plugin-zoom-1.2.0.tgz#dad0861b2d171bca1f6d11b3e3e917bc12b950ff"