An eight-color palette for pie charts is a set of eight distinct colors used to differentiate the slices of a pie chart. The choice of colors is crucial for readability and understanding, especially when multiple slices are present. A well-chosen palette can help viewers easily distinguish between different data categories. Common considerations for pie chart color palettes include contrast, color psychology, and the color wheel. Popular color palettes for pie charts include the Adobe Color Wheel, Rainbow, and Monochromatic palettes.