[android] How to change color in circular progress bar?

You can use a style for changing the color of progress like below

 <style name="AppTheme.anyName">
        <item name="colorAccent">YOUR_COLOR</item>
    </style>

and use it in the ProgressBar like below

<ProgressBar
            style="?android:attr/progressBarStyle"
            android:theme="@style/AppTheme.WhiteAccent"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginBottom="@dimen/dimen_30"
        />

Hope it helps.