You can use below given code. You might need to adjust height and width in thumb_selector file
<android.support.v7.widget.SwitchCompat
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:checked="true"
android:thumb="@drawable/thumb_selector"
app:track="@drawable/track_selector" />
track_selector.xml
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_checked="true">
<shape android:dither="true" android:shape="rectangle" android:useLevel="false" android:visible="true">
<solid android:color="@color/light_pink" />
<corners android:radius="50dp" />
<size android:width="2dp" android:height="24dp" />
</shape>
</item>
<item android:state_checked="false">
<shape android:dither="true" android:shape="rectangle" android:useLevel="false" android:visible="true">
<corners android:radius="50dp" />
<size android:width="2dp" android:height="24dp" />
<stroke
android:width="2dp"
android:color="@color/white" />
</shape>
</item>
</selector>
thumb_selector.xml
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_checked="false">
<shape android:dither="true" android:shape="rectangle" android:useLevel="false" android:visible="true">
<solid android:color="#ffffff" />
<corners android:radius="100dp" />
<size android:width="18dp" android:height="18dp" />
<stroke android:width="4dp" android:color="#0000ffff" />
</shape>
</item>
</selector>