diff --git a/api/migrations/0027_remove_userprofile_first_name_and_more.py b/api/migrations/0027_remove_userprofile_first_name_and_more.py
new file mode 100644
index 0000000..b58b94c
--- /dev/null
+++ b/api/migrations/0027_remove_userprofile_first_name_and_more.py
@@ -0,0 +1,21 @@
+# Generated by Django 5.0.1 on 2024-04-04 08:50
+
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('api', '0026_alter_uploadtask_status'),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name='userprofile',
+            name='first_name',
+        ),
+        migrations.RemoveField(
+            model_name='userprofile',
+            name='last_name',
+        ),
+    ]
diff --git a/api/models.py b/api/models.py
index b863fc0..c92ba28 100644
--- a/api/models.py
+++ b/api/models.py
@@ -24,8 +24,6 @@ def __str__(self):
 class UserProfile(models.Model):
     uuid = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
     user = models.OneToOneField(User, on_delete=models.CASCADE)
-    first_name = models.CharField(max_length=50, null=True, blank=True)
-    last_name = models.CharField(max_length=50, null=True, blank=True)
     organisation = models.ForeignKey(
         Organisation, on_delete=models.CASCADE, null=True, blank=True
     )
diff --git a/gmn/migrations/0016_gmn_color.py b/gmn/migrations/0016_gmn_color.py
new file mode 100644
index 0000000..79029db
--- /dev/null
+++ b/gmn/migrations/0016_gmn_color.py
@@ -0,0 +1,17 @@
+# Generated by Django 5.0.1 on 2024-04-04 07:42
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("gmn", "0015_alter_gmn_delivery_accountable_party_and_more"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="gmn",
+            name="color",
+            field=models.CharField(blank=True, max_length=7, null=True),
+        ),
+    ]
diff --git a/gmn/migrations/0017_alter_gmn_color.py b/gmn/migrations/0017_alter_gmn_color.py
new file mode 100644
index 0000000..ece1499
--- /dev/null
+++ b/gmn/migrations/0017_alter_gmn_color.py
@@ -0,0 +1,18 @@
+# Generated by Django 5.0.1 on 2024-04-04 08:50
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('gmn', '0016_gmn_color'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='gmn',
+            name='color',
+            field=models.CharField(blank=True, default=None, max_length=7, null=True),
+        ),
+    ]
diff --git a/gmn/models.py b/gmn/models.py
index 8a4f015..44c48db 100644
--- a/gmn/models.py
+++ b/gmn/models.py
@@ -1,3 +1,4 @@
+import random
 import uuid
 
 from django.db import models
@@ -5,6 +6,11 @@
 from api.models import Organisation
 
 
+def generate_random_color():
+    """Generate a random hex color code."""
+    return f"#{random.randint(0, 0xFFFFFF):06x}"
+
+
 class GMN(models.Model):
     """Groundwater Monitoring Network
 
@@ -25,10 +31,16 @@ class GMN(models.Model):
     start_date_monitoring = models.DateField(null=True)
     object_registration_time = models.DateTimeField(null=True)
     registration_status = models.CharField(max_length=50, null=True)
+    color = models.CharField(max_length=7, null=True, blank=True, default=None)
 
     def __str__(self):
         return self.bro_id
 
+    def save(self, *args, **kwargs):
+        if not self.color:
+            self.color = generate_random_color()
+        super().save(*args, **kwargs)
+
     class Meta:
         verbose_name_plural = "GMN's"