diff --git a/colab/plugins/utils/models.py b/colab/plugins/utils/models.py
index 9d61c9d..4e808d8 100644
--- a/colab/plugins/utils/models.py
+++ b/colab/plugins/utils/models.py
@@ -3,6 +3,10 @@ from django.conf import settings
 from colab.accounts.models import User
 
 
+class Tag(models.Model):
+    name = models.CharField(max_length=255)
+    color = models.CharField(max_length=30)
+
 class Collaboration(models.Model):
     '''
     Class to define the fields of the collaboration block
diff --git a/colab/super_archives/templates/message-preview.html b/colab/super_archives/templates/message-preview.html
index feba65e..06ee063 100644
--- a/colab/super_archives/templates/message-preview.html
+++ b/colab/super_archives/templates/message-preview.html
@@ -3,9 +3,9 @@
 <li class="preview-message">
 <span class="glyphicon glyphicon-{{ result.icon_name }}" title="{{ result.type }}"></span>
 
-{% if result.tag %}
+{% if result.tag_name %}
 <a href="{% firstof result.mailinglist_url result.mailinglist.get_absolute_url result.url %}">
-  <span class="label label-primary">{{ result.tag }}</span>
+  <span class="label label-primary" style="background-color:{{result.tag_color}}" >{{ result.tag_name}}</span>
 </a>
 {% endif %}
 
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libgit2 0.21.2