The hex color #7c7ad5 is a light color. The web-safe version is Hex
#6666CC. A complementary color is
#83852A. The grayscale version is
#999999. A 20% lighter version of the original color is
#AFADFF, and Hex
#4947A2 is the 20% darker color. If the color is saturated by 10%, you get
#7977DB. If the color is desaturated by 10%, the color
#7F7DCF is obtained.