Scrollbar color in RecyclerView

You can do this by including following line of code in your Recyclerview

android:scrollbarThumbVertical="@drawable/yoursdrawablefile

The drawable file in my case is:

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
    <gradient android:startColor="#000" android:endColor="#000"
        android:angle="45"/>
    <corners android:radius="6dp" />
</shape>