Hi,
There are several ways you can achieve this, we will need a better understanding of the use case to recommend the best option. At a very high level this can be done using Javascript, see link below to give you an idea
https://support.sisense.com/kb/en/article/change-color-for-specific-category-in-pie-chart
If you are looking for a more generic option where you read values from the database, then you would need to create a custom plugin , https://support.sisense.com/kb/en/article/create-a-new-plugin , utilize the ProcessResult callback to read the colors and set the color object accordingly.
If you need help with this , please reach out to you Customer Success Manager , who can set you up with our Professional Services for consulation.
Thanks,
Ronen