The hex color #a7a8cd is a light color. The web-safe version is Hex
#9999CC. A complementary color is
#585732. The grayscale version is
#B4B4B4. A 20% lighter version of the original color is
#DADBFF, and Hex
#74759A is the 20% darker color. If the color is saturated by 10%, you get
#A6A7D0. If the color is desaturated by 10%, the color
#A8A9CB is obtained.