Attractive blue pie chart color scheme

Quick answer：

An attractive blue pie chart color scheme typically involves using shades of blue that are not too close in value to avoid visual clutter and to make the different sections of the pie chart easily distinguishable. This can be achieved by using a gradient of blue hues, with lighter shades for larger sections and darker shades for smaller ones. Additionally, incorporating a contrasting color for the chart's legend or labels can help improve readability.