The hex color #a4a4dd is a light color. The web-safe version is Hex
#9999CC. A complementary color is
#5B5B22. The grayscale version is
#B7B7B7. A 20% lighter version of the original color is
#D7D7FF, and Hex
#7171AA is the 20% darker color. If the color is saturated by 10%, you get
#A2A2E1. If the color is desaturated by 10%, the color
#A6A6D9 is obtained.