diff --git a/src/org/thoughtcrime/securesms/ConversationFragment.java b/src/org/thoughtcrime/securesms/ConversationFragment.java
index d91bc4bf04..142aac2cea 100644
--- a/src/org/thoughtcrime/securesms/ConversationFragment.java
+++ b/src/org/thoughtcrime/securesms/ConversationFragment.java
@@ -1,3 +1,19 @@
+/**
+ * Copyright (C) 2015 Open Whisper Systems
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
 package org.thoughtcrime.securesms;
 
 import android.app.Activity;
@@ -283,6 +299,7 @@ public class ConversationFragment extends Fragment
     intent.putExtra(MessageDetailsActivity.MASTER_SECRET_EXTRA, masterSecret);
     intent.putExtra(MessageDetailsActivity.MESSAGE_ID_EXTRA, message.getId());
     intent.putExtra(MessageDetailsActivity.TYPE_EXTRA, message.isMms() ? MmsSmsDatabase.MMS_TRANSPORT : MmsSmsDatabase.SMS_TRANSPORT);
+    intent.putExtra(MessageDetailsActivity.RECIPIENTS_IDS_EXTRA, recipients.getIds());
     startActivity(intent);
   }
 
diff --git a/src/org/thoughtcrime/securesms/ConversationItem.java b/src/org/thoughtcrime/securesms/ConversationItem.java
index eb7f32ef43..ccad1f3d70 100644
--- a/src/org/thoughtcrime/securesms/ConversationItem.java
+++ b/src/org/thoughtcrime/securesms/ConversationItem.java
@@ -543,6 +543,7 @@ public class ConversationItem extends LinearLayout
         intent.putExtra(MessageDetailsActivity.MESSAGE_ID_EXTRA, messageRecord.getId());
         intent.putExtra(MessageDetailsActivity.TYPE_EXTRA, messageRecord.isMms() ? MmsSmsDatabase.MMS_TRANSPORT : MmsSmsDatabase.SMS_TRANSPORT);
         intent.putExtra(MessageDetailsActivity.IS_PUSH_GROUP_EXTRA, groupThread && messageRecord.isPush());
+        intent.putExtra(MessageDetailsActivity.RECIPIENTS_IDS_EXTRA, conversationRecipients.getIds());
         context.startActivity(intent);
       } else if (!messageRecord.isOutgoing() && messageRecord.isIdentityMismatchFailure()) {
         handleApproveIdentity();
diff --git a/src/org/thoughtcrime/securesms/MessageDetailsActivity.java b/src/org/thoughtcrime/securesms/MessageDetailsActivity.java
index 45ffce71fd..9c483b31da 100644
--- a/src/org/thoughtcrime/securesms/MessageDetailsActivity.java
+++ b/src/org/thoughtcrime/securesms/MessageDetailsActivity.java
@@ -18,7 +18,9 @@ package org.thoughtcrime.securesms;
 
 import android.content.Context;
 import android.database.Cursor;
+import android.graphics.drawable.ColorDrawable;
 import android.os.AsyncTask;
+import android.os.Build;
 import android.os.Bundle;
 import android.support.annotation.NonNull;
 import android.support.v4.app.LoaderManager.LoaderCallbacks;
@@ -31,6 +33,7 @@ import android.view.ViewGroup;
 import android.widget.ListView;
 import android.widget.TextView;
 
+import org.thoughtcrime.securesms.color.MaterialColor;
 import org.thoughtcrime.securesms.crypto.MasterSecret;
 import org.thoughtcrime.securesms.database.DatabaseFactory;
 import org.thoughtcrime.securesms.database.EncryptingSmsDatabase;
@@ -46,6 +49,7 @@ import org.thoughtcrime.securesms.util.DateUtils;
 import org.thoughtcrime.securesms.util.DynamicLanguage;
 import org.thoughtcrime.securesms.util.DynamicTheme;
 import org.thoughtcrime.securesms.util.GroupUtil;
+import org.thoughtcrime.securesms.util.Util;
 
 import java.io.IOException;
 import java.lang.ref.WeakReference;
@@ -58,13 +62,14 @@ import java.util.Locale;
 /**
  * @author Jake McGinty
  */
-public class MessageDetailsActivity extends PassphraseRequiredActionBarActivity implements LoaderCallbacks<Cursor> {
+public class MessageDetailsActivity extends PassphraseRequiredActionBarActivity implements LoaderCallbacks<Cursor>, Recipients.RecipientsModifiedListener {
   private final static String TAG = MessageDetailsActivity.class.getSimpleName();
 
-  public final static String MASTER_SECRET_EXTRA = "master_secret";
-  public final static String MESSAGE_ID_EXTRA    = "message_id";
-  public final static String IS_PUSH_GROUP_EXTRA = "is_push_group";
-  public final static String TYPE_EXTRA          = "type";
+  public final static String MASTER_SECRET_EXTRA  = "master_secret";
+  public final static String MESSAGE_ID_EXTRA     = "message_id";
+  public final static String IS_PUSH_GROUP_EXTRA  = "is_push_group";
+  public final static String TYPE_EXTRA           = "type";
+  public final static String RECIPIENTS_IDS_EXTRA = "recipients_ids";
 
   private MasterSecret     masterSecret;
   private boolean          isPushGroup;
@@ -94,8 +99,7 @@ public class MessageDetailsActivity extends PassphraseRequiredActionBarActivity
     setContentView(R.layout.message_details_activity);
 
     initializeResources();
-
-    getSupportActionBar().setDisplayHomeAsUpEnabled(true);
+    initializeActionBar();
     getSupportLoaderManager().initLoader(0, null, this);
   }
 
@@ -107,6 +111,33 @@ public class MessageDetailsActivity extends PassphraseRequiredActionBarActivity
     getSupportActionBar().setTitle(R.string.AndroidManifest__message_details);
   }
 
+  private void initializeActionBar() {
+    getSupportActionBar().setDisplayHomeAsUpEnabled(true);
+
+    Recipients recipients = RecipientFactory.getRecipientsForIds(this, getIntent().getLongArrayExtra(RECIPIENTS_IDS_EXTRA), true);
+    recipients.addListener(this);
+
+    setActionBarColor(recipients.getColor());
+  }
+
+  private void setActionBarColor(MaterialColor color) {
+    getSupportActionBar().setBackgroundDrawable(new ColorDrawable(color.toActionBarColor(this)));
+
+    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
+      getWindow().setStatusBarColor(color.toStatusBarColor(this));
+    }
+  }
+
+  @Override
+  public void onModified(final Recipients recipients) {
+    Util.runOnMain(new Runnable() {
+      @Override
+      public void run() {
+        setActionBarColor(recipients.getColor());
+      }
+    });
+  }
+
   private void initializeResources() {
     inflater       = LayoutInflater.from(this);
     View header = inflater.inflate(R.layout.message_details_header, recipientsList, false);
@@ -274,7 +305,7 @@ public class MessageDetailsActivity extends PassphraseRequiredActionBarActivity
                                       .getGroupMembers(GroupUtil.getDecodedId(groupId), false);
         } catch (IOException e) {
           Log.w(TAG, e);
-         recipients = RecipientFactory.getRecipientsFor(MessageDetailsActivity.this, new LinkedList<Recipient>(), false);
+          recipients = RecipientFactory.getRecipientsFor(MessageDetailsActivity.this, new LinkedList<Recipient>(), false);
         }
       }