The hex color #a99ffa is a light color. The web-safe version is Hex
#9999FF. A complementary color is
#566005. The grayscale version is
#C1C1C1. A 20% lighter version of the original color is
#DCD2FF, and Hex
#766CC7 is the 20% darker color. If the color is saturated by 10%, you get
#A79CFF. If the color is desaturated by 10%, the color
#ABA2F4 is obtained.