By default Interactive Reporting bases the color scheme used in charts on the standard colors in the Standard Chart Color Palette. This palette consists of a legacy color palette (pre 8.4 color palette) and a default color palette as shown below:
The legacy color palette consists of the first six rows in the color palette.
The standard color palette consists of the last two rows. There are seventeen chart default colors and the chart background color is the last color on the bottom row.
The numbers to the right of the color scheme are the hexadecimal numbers for the rgb codes in the standard color palette.