I'm using Zoomcharts Donut Chart and publishing is changing the color to white, making the fraction obscure.
OneWithQuestion (below) also mentions using Pie Charts and TreeMaps.
Hoping to figure this out soon.
Thanks for your guidance.
I changed the color from a custom looking color to a more common color and it worked for the first level donut filter, but changed a color in the 3rd level to white.
Changed the deep red custom color to a tannish (light brown/grey) color and it worked - the colors in the published report were the same as the colors in the desktop report (Zoomcharts Donut Chart).
I'm having this issue as well. I have a very in-depth report with 28 pages. Certain pages have random line graphs and bar graphs where one color selection (in my case, both are charcoal gray) is going rogue and changing to beige once embedded/published. All are still normal colors in PBI Desktop.
Work around until this issue gets developer's attention: Edit the dashboard color directly on Power BI Service and save. That way the color stays even after published. This works for me because the dataset is auto freshed. If I make any major change to the original Desktop version and publish, all changes I made to the Service version is gone and here I go again...