diff --git a/CHANGELOG.md b/CHANGELOG.md
index 43882432d..82f848121 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -25,6 +25,7 @@
     （デスクトップ表示ではusernameの右側のボタンからも追加可能）
 - アカウントの引っ越し（フォロワー引き継ぎ）に対応
   * 一度引っ越したアカウントは利用に制限がかかります
+- チャンネルに色を設定できるようになりました。各ノートに設定した色のインジケーターが表示されます。
 - ロールタイムラインをロールごとに表示するかどうかの選択できるようになりました。
 	* デフォルトがオフになるので、ロールタイムラインを表示する場合はオンにしてください。
 - カスタム絵文字のライセンスを複数でセットできるようになりました。
diff --git a/packages/backend/migration/1682985520254-channelColor.js b/packages/backend/migration/1682985520254-channelColor.js
new file mode 100644
index 000000000..294b7372b
--- /dev/null
+++ b/packages/backend/migration/1682985520254-channelColor.js
@@ -0,0 +1,11 @@
+export class ChannelColor1682985520254 {
+    name = 'ChannelColor1682985520254'
+
+    async up(queryRunner) {
+        await queryRunner.query(`ALTER TABLE "channel" ADD "color" character varying(16) NOT NULL DEFAULT '#86b300'`);
+    }
+
+    async down(queryRunner) {
+        await queryRunner.query(`ALTER TABLE "channel" DROP COLUMN "color"`);
+    }
+}
diff --git a/packages/backend/src/core/entities/ChannelEntityService.ts b/packages/backend/src/core/entities/ChannelEntityService.ts
index 987002606..05eb83658 100644
--- a/packages/backend/src/core/entities/ChannelEntityService.ts
+++ b/packages/backend/src/core/entities/ChannelEntityService.ts
@@ -74,6 +74,7 @@ export class ChannelEntityService {
 			userId: channel.userId,
 			bannerUrl: banner ? this.driveFileEntityService.getPublicUrl(banner) : null,
 			pinnedNoteIds: channel.pinnedNoteIds,
+			color: channel.color,
 			usersCount: channel.usersCount,
 			notesCount: channel.notesCount,
 
diff --git a/packages/backend/src/core/entities/NoteEntityService.ts b/packages/backend/src/core/entities/NoteEntityService.ts
index 26debd6ad..32269a410 100644
--- a/packages/backend/src/core/entities/NoteEntityService.ts
+++ b/packages/backend/src/core/entities/NoteEntityService.ts
@@ -335,6 +335,7 @@ export class NoteEntityService implements OnModuleInit {
 			channel: channel ? {
 				id: channel.id,
 				name: channel.name,
+				color: channel.color,
 			} : undefined,
 			mentions: note.mentions.length > 0 ? note.mentions : undefined,
 			uri: note.uri ?? undefined,
diff --git a/packages/backend/src/models/entities/Channel.ts b/packages/backend/src/models/entities/Channel.ts
index 2d346fdf9..ebbfc439a 100644
--- a/packages/backend/src/models/entities/Channel.ts
+++ b/packages/backend/src/models/entities/Channel.ts
@@ -64,6 +64,12 @@ export class Channel {
 	})
 	public pinnedNoteIds: string[];
 
+	@Column('varchar', {
+		length: 16,
+		default: '#86b300',
+	})
+	public color: string;
+
 	@Index()
 	@Column('integer', {
 		default: 0,
diff --git a/packages/backend/src/models/json-schema/channel.ts b/packages/backend/src/models/json-schema/channel.ts
index 745b39a6b..cb42c782b 100644
--- a/packages/backend/src/models/json-schema/channel.ts
+++ b/packages/backend/src/models/json-schema/channel.ts
@@ -59,5 +59,9 @@ export const packedChannelSchema = {
 				format: 'id',
 			},
 		},
+		color: {
+			type: 'string',
+			optional: false, nullable: false,
+		},
 	},
 } as const;
diff --git a/packages/backend/src/server/api/endpoints/channels/create.ts b/packages/backend/src/server/api/endpoints/channels/create.ts
index 6294b08fa..69e2f2504 100644
--- a/packages/backend/src/server/api/endpoints/channels/create.ts
+++ b/packages/backend/src/server/api/endpoints/channels/create.ts
@@ -43,6 +43,7 @@ export const paramDef = {
 		name: { type: 'string', minLength: 1, maxLength: 128 },
 		description: { type: 'string', nullable: true, minLength: 1, maxLength: 2048 },
 		bannerId: { type: 'string', format: 'misskey:id', nullable: true },
+		color: { type: 'string', minLength: 1, maxLength: 16 },
 	},
 	required: ['name'],
 } as const;
@@ -80,6 +81,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> {
 				name: ps.name,
 				description: ps.description ?? null,
 				bannerId: banner ? banner.id : null,
+				...(ps.color !== undefined ? { color: ps.color } : {}),
 			} as Channel).then(x => this.channelsRepository.findOneByOrFail(x.identifiers[0]));
 
 			return await this.channelEntityService.pack(channel, me);
diff --git a/packages/backend/src/server/api/endpoints/channels/update.ts b/packages/backend/src/server/api/endpoints/channels/update.ts
index 084b3f919..a4e38d429 100644
--- a/packages/backend/src/server/api/endpoints/channels/update.ts
+++ b/packages/backend/src/server/api/endpoints/channels/update.ts
@@ -53,6 +53,7 @@ export const paramDef = {
 				type: 'string', format: 'misskey:id',
 			},
 		},
+		color: { type: 'string', minLength: 1, maxLength: 16 },
 	},
 	required: ['channelId'],
 } as const;
@@ -104,6 +105,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> {
 				...(ps.name !== undefined ? { name: ps.name } : {}),
 				...(ps.description !== undefined ? { description: ps.description } : {}),
 				...(ps.pinnedNoteIds !== undefined ? { pinnedNoteIds: ps.pinnedNoteIds } : {}),
+				...(ps.color !== undefined ? { color: ps.color } : {}),
 				...(banner ? { bannerId: banner.id } : {}),
 			});
 
diff --git a/packages/frontend/src/components/MkColorInput.vue b/packages/frontend/src/components/MkColorInput.vue
index a96e1edf7..2471aa958 100644
--- a/packages/frontend/src/components/MkColorInput.vue
+++ b/packages/frontend/src/components/MkColorInput.vue
@@ -1,7 +1,7 @@
 <template>
 <div>
 	<div :class="$style.label"><slot name="label"></slot></div>
-	<div :class="[$style.input, { disabled, focused }]">
+	<div :class="[$style.input, { disabled }]">
 		<input
 			ref="inputEl"
 			v-model="v"
diff --git a/packages/frontend/src/components/MkNote.vue b/packages/frontend/src/components/MkNote.vue
index eba3c211a..4273af51e 100644
--- a/packages/frontend/src/components/MkNote.vue
+++ b/packages/frontend/src/components/MkNote.vue
@@ -12,6 +12,7 @@
 	<!--<div v-if="appearNote._prId_" class="tip"><i class="ti ti-speakerphone"></i> {{ i18n.ts.promotion }}<button class="_textButton hide" @click="readPromo()">{{ i18n.ts.hideThisNote }} <i class="ti ti-x"></i></button></div>-->
 	<!--<div v-if="appearNote._featuredId_" class="tip"><i class="ti ti-bolt"></i> {{ i18n.ts.featured }}</div>-->
 	<div v-if="isRenote" :class="$style.renote">
+		<div v-if="note.channel" :class="$style.colorBar" :style="{ background: note.channel.color }"></div>
 		<MkAvatar :class="$style.renoteAvatar" :user="note.user" link preview/>
 		<i class="ti ti-repeat" style="margin-right: 4px;"></i>
 		<I18n :src="i18n.ts.renotedBy" tag="span" :class="$style.renoteText">
@@ -40,6 +41,7 @@
 		<Mfm :text="getNoteSummary(appearNote)" :plain="true" :nowrap="true" :author="appearNote.user" :class="$style.collapsedRenoteTargetText" @click="renoteCollapsed = false"/>
 	</div>
 	<article v-else :class="$style.article" @contextmenu.stop="onContextmenu">
+		<div v-if="appearNote.channel" :class="$style.colorBar" :style="{ background: appearNote.channel.color }"></div>
 		<MkAvatar :class="$style.avatar" :user="appearNote.user" link preview/>
 		<div :class="$style.main">
 			<MkNoteHeader :class="$style.header" :note="appearNote" :mini="true"/>
@@ -546,6 +548,7 @@ function showReactions(): void {
 }
 
 .renote {
+	position: relative;
 	display: flex;
 	align-items: center;
 	padding: 16px 32px 8px 32px;
@@ -556,6 +559,10 @@ function showReactions(): void {
 	& + .article {
 		padding-top: 8px;
 	}
+
+	> .colorBar {
+		height: calc(100% - 6px);
+	}
 }
 
 .renoteAvatar {
@@ -627,6 +634,16 @@ function showReactions(): void {
 	padding: 28px 32px;
 }
 
+.colorBar {
+	position: absolute;
+	top: 8px;
+	left: 8px;
+	width: 5px;
+	height: calc(100% - 16px);
+	border-radius: 999px;
+	pointer-events: none;
+}
+
 .avatar {
 	flex-shrink: 0;
 	display: block !important;
@@ -842,6 +859,13 @@ function showReactions(): void {
 			}
 		}
 	}
+
+	.colorBar {
+		top: 6px;
+		left: 6px;
+		width: 4px;
+		height: calc(100% - 12px);
+	}
 }
 
 @container (max-width: 300px) {
diff --git a/packages/frontend/src/pages/channel-editor.vue b/packages/frontend/src/pages/channel-editor.vue
index 9cb440d2b..488738f31 100644
--- a/packages/frontend/src/pages/channel-editor.vue
+++ b/packages/frontend/src/pages/channel-editor.vue
@@ -11,6 +11,10 @@
 				<template #label>{{ i18n.ts.description }}</template>
 			</MkTextarea>
 
+			<MkColorInput v-model="color">
+				<template #label>{{ i18n.ts.color }}</template>
+			</MkColorInput>
+
 			<div>
 				<MkButton v-if="bannerId == null" @click="setBannerImage"><i class="ti ti-plus"></i> {{ i18n.ts._channel.setBanner }}</MkButton>
 				<div v-else-if="bannerUrl">
@@ -55,6 +59,7 @@ import { computed, ref, watch, defineAsyncComponent } from 'vue';
 import MkTextarea from '@/components/MkTextarea.vue';
 import MkButton from '@/components/MkButton.vue';
 import MkInput from '@/components/MkInput.vue';
+import MkColorInput from '@/components/MkColorInput.vue';
 import { selectFile } from '@/scripts/select-file';
 import * as os from '@/os';
 import { useRouter } from '@/router';
@@ -75,6 +80,7 @@ let name = $ref(null);
 let description = $ref(null);
 let bannerUrl = $ref<string | null>(null);
 let bannerId = $ref<string | null>(null);
+let color = $ref(null);
 const pinnedNotes = ref([]);
 
 watch(() => bannerId, async () => {
@@ -101,6 +107,7 @@ async function fetchChannel() {
 	pinnedNotes.value = channel.pinnedNoteIds.map(id => ({
 		id,
 	}));
+	color = channel.color;
 }
 
 fetchChannel();
@@ -128,6 +135,7 @@ function save() {
 		description: description,
 		bannerId: bannerId,
 		pinnedNoteIds: pinnedNotes.value.map(x => x.id),
+		color: color,
 	};
 
 	if (props.channelId) {