android:background="#64B5F6"
You can change the value after '#' according to your own specification or need depending on how you want to use them.
Here is a sample code:
<TextView_x000D_
android:text="Abir"_x000D_
android:layout_width="match_parent"_x000D_
android:layout_height="wrap_content"_x000D_
android:textSize="24sp"_x000D_
android:background="#D4E157" />
_x000D_
Thank you :)