diff --git a/src/modules/contents/posts/tags/components/PostTag.vue b/src/modules/contents/posts/tags/components/PostTag.vue
index ba76104ff..d9848338d 100644
--- a/src/modules/contents/posts/tags/components/PostTag.vue
+++ b/src/modules/contents/posts/tags/components/PostTag.vue
@@ -3,6 +3,7 @@ import { VTag } from "@halo-dev/components";
 import type { Tag } from "@halo-dev/api-client";
 import { computed } from "vue";
 import { useRouter } from "vue-router";
+import Color from "colorjs.io";
 
 const props = withDefaults(
   defineProps<{
@@ -19,8 +20,9 @@ const labelColor = computed(() => {
   if (!color) {
     return "inherit";
   }
-  // TODO computed label color
-  return "#333";
+  const onWhite = Math.abs(Color.contrast(color, "white", "APCA"));
+  const onBlack = Math.abs(Color.contrast(color, "black", "APCA"));
+  return onWhite > onBlack ? "white" : "#333";
 });
 
 const router = useRouter();
@@ -40,7 +42,6 @@ const handleRouteToDetail = () => {
     :styles="{
       background: tag.spec.color,
       color: labelColor,
-      borderColor: tag.spec.color,
     }"
     @click="handleRouteToDetail"
   >
diff --git a/src/modules/contents/posts/tags/components/TagEditingModal.vue b/src/modules/contents/posts/tags/components/TagEditingModal.vue
index 412b7282d..7389ee983 100644
--- a/src/modules/contents/posts/tags/components/TagEditingModal.vue
+++ b/src/modules/contents/posts/tags/components/TagEditingModal.vue
@@ -43,7 +43,7 @@ const initialFormState: Tag = {
   spec: {
     displayName: "",
     slug: "",
-    color: "#b16cBe",
+    color: "#ffffff",
     cover: "",
   },
   apiVersion: "content.halo.run/v1alpha1",
diff --git a/src/views/system/setup-data/tag.json b/src/views/system/setup-data/tag.json
index b8294bafb..c82a11561 100644
--- a/src/views/system/setup-data/tag.json
+++ b/src/views/system/setup-data/tag.json
@@ -2,7 +2,7 @@
   "spec": {
     "displayName": "Halo",
     "slug": "halo",
-    "color": "#ad95b2",
+    "color": "#ffffff",
     "cover": ""
   },
   "apiVersion": "content.halo.run/v1alpha1",