If there is a discrepancy in the color between the Preview mode version and the Builder section of a specific page, the root of the issue could be a faulty Hex Code entered for the Background color option without the # symbol. E.g ffb925, where the correct code is #ffb925

Builder Section view:

Preview mode:

Once the # symbol is added, the issue should be resolved. If the funnel is already published, please click Push Changes to force the save.