Power BI Report Theming
Microsoft Power BI recently added support for custom color schemes. While the standard color palette that Power BI provides is not bad, many organizations have a strong sense of branding and want that to carry over into their visualizations. This is even more critical for organizations that choose to publish their visualizations publicly, for example embedding them in their website. Report theming is currently a preview feature available as part of the March 2017 Desktop Update.
If you don't have a specific theme that you need to follow for your organization, but just want something more attractive than the standard colors, you can leverage the theme gallery. This lets you choose from a growing number of themes, including ones optimized for color-blind users.
Report theming announcement: https://powerbi.microsoft.com/en-us/blog/power-bi-desktop-march-feature-summary/
Theme gallery announcement: https://powerbi.microsoft.com/en-us/blog/power-bi-community-report-theme-gallery/