How do I change the center color to white for a Custom Diverging palette (Attached image and sample data source)

Hi Manoj,

You need to create custom palate from below path:

Once you edit preferences.tps after then write below code between <preferences> and </preferences> tag

<color-palette name="Test" type="ordered-sequential" >

<color>⌗2dc2d5</color>

<color>⌗FFFFFF</color>

<color>⌗f7b815</color>

</color-palette>

Now You have give palette Name as 'Test' so select Test palette in tableau.

Note: Once you created Custom Palette you need to reopen workbook.

Let me know if you have any issue.

Please find attached workbook for your reference.