Just create a Shape rectangular in the folder drawable and define as background of his view:
drawable/embroider_blue.xml
<shape
   xmlns:android="http://schemas.android.com/apk/res/android"
   android:shape="rectangle" >
   // A cor do background
   <solid android:color="#FF0099FF" />
   // Borda (tamanho e cor)
   <stroke android:width="1dip" android:color="#d4d4d4" />
   // Arredondamento das bordas
   <corners
       android:bottomRightRadius="5dp"
       android:bottomLeftRadius="5dp"
       android:topLeftRadius="5dp"
       android:topRightRadius="5dp"/>
</shape>
And define the background of an element like this:
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="@drawable/borda_azul">
      ...Seus componentes (Botões, etc)
</LinearLayout>