The array is in a format that can be directly used in BaseChart.gradientColor2 and DrawArea.gradientColor2. Its contents (in hex) is:
00 9898E0 60 F0F0FF B0 D8D8F0 100 9898E0
See Color Specification on how colors are represented in ChartDirector.
ChartDirector 7.0 (ASP/COM/VB Edition)
ChartDirector.API.
Description
00 9898E0 60 F0F0FF B0 D8D8F0 100 9898E0