diff --git a/java/com/android/incallui/rtt/impl/res/color/submit_button_background_color.xml b/java/com/android/incallui/rtt/impl/res/color/submit_button_background_color.xml
new file mode 100644
index 0000000..0da2c37
--- /dev/null
+++ b/java/com/android/incallui/rtt/impl/res/color/submit_button_background_color.xml
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright (C) 2018 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License
+  -->
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+  <item android:state_enabled="false"
+      android:color="#BDBDBD" />
+  <item android:color="#FFFFFF" />
+</selector>
\ No newline at end of file
diff --git a/java/com/android/incallui/rtt/impl/res/layout/frag_rtt_chat.xml b/java/com/android/incallui/rtt/impl/res/layout/frag_rtt_chat.xml
index 21d00a3..cff2b3f 100644
--- a/java/com/android/incallui/rtt/impl/res/layout/frag_rtt_chat.xml
+++ b/java/com/android/incallui/rtt/impl/res/layout/frag_rtt_chat.xml
@@ -62,11 +62,11 @@
         android:layout_height="53dp"
         android:layout_gravity="bottom"
         android:background="@drawable/input_bubble_background"
-        android:backgroundTint="?colorIcon"
+        android:backgroundTint="@color/submit_button_background_color"
         android:backgroundTintMode="multiply"
         android:contentDescription="@string/content_description_rtt_check_button"
         android:src="@drawable/quantum_ic_done_vd_theme_24"
-        android:tint="?android:attr/colorPrimary"
+        android:tint="@color/submit_button_color"
         android:visibility="gone"/>
   </LinearLayout>
 
diff --git a/java/com/android/incallui/theme/res/values/styles.xml b/java/com/android/incallui/theme/res/values/styles.xml
index 3746ce7..e6d6b07 100644
--- a/java/com/android/incallui/theme/res/values/styles.xml
+++ b/java/com/android/incallui/theme/res/values/styles.xml
@@ -38,6 +38,8 @@
     <item name="android:statusBarColor">@android:color/transparent</item>
     <item name="android:navigationBarColor">@android:color/transparent</item>
     <item name="android:windowDrawsSystemBarBackgrounds">true</item>
+    <item name="android:colorPrimaryDark">@color/dialer_theme_color_dark</item>
+    <item name="colorPrimaryDark">@color/dialer_theme_color_dark</item>
 
     <item name="dialpad_key_button_touch_tint">?attr/colorPrimary20pct</item>
     <item name="dialpad_style">@style/InCallDialpad</item>