The hex color #aa40b5 is a dark color. The web-safe version is Hex
#9933CC. A complementary color is
#55BF4A. The grayscale version is
#8A8A8A. A 20% lighter version of the original color is
#DD73E8, and Hex
#770D82 is the 20% darker color. If the color is saturated by 10%, you get
#AD39B9. If the color is desaturated by 10%, the color
#A747B1 is obtained.