diff --git a/addons/utm/i18n/utm.pot b/addons/utm/i18n/utm.pot
index f8d5629bb5a..c0392cbe3e8 100644
--- a/addons/utm/i18n/utm.pot
+++ b/addons/utm/i18n/utm.pot
@@ -554,6 +554,13 @@ msgid ""
 "progress,  done, …)."
 msgstr ""
 
+#. module: utm
+#: model:ir.model.fields,help:utm.field_utm_tag__color
+msgid ""
+"Tag color. No color means no display in kanban to distinguish internal tags "
+"from public categorization tags."
+msgstr ""
+
 #. module: utm
 #: model:ir.model.constraint,message:utm.constraint_utm_tag_name_uniq
 msgid "Tag name already exists !"
diff --git a/addons/utm/models/utm.py b/addons/utm/models/utm.py
index 3c197d1814e..0bf712c4be4 100644
--- a/addons/utm/models/utm.py
+++ b/addons/utm/models/utm.py
@@ -1,6 +1,8 @@
 # -*- coding: utf-8 -*-
 # Part of Odoo. See LICENSE file for full copyright and licensing details.
 
+from random import randint
+
 from odoo import fields, models, api, SUPERUSER_ID
 
 
@@ -64,9 +66,14 @@ class UtmTag(models.Model):
     _description = 'UTM Tag'
     _order = 'name'
 
+    def _default_color(self):
+        return randint(1, 11)
+
     name = fields.Char(required=True, translate=True)
-    color = fields.Integer(string='Color Index')
+    color = fields.Integer(
+        string='Color Index', default=lambda self: self._default_color(),
+        help='Tag color. No color means no display in kanban to distinguish internal tags from public categorization tags.')
 
     _sql_constraints = [
-            ('name_uniq', 'unique (name)', "Tag name already exists !"),
+        ('name_uniq', 'unique (name)', "Tag name already exists !"),
     ]