The hex color #b6b7fc is a light color. The web-safe version is Hex
#CCCCFF. A complementary color is
#494803. The grayscale version is
#CECECE. A 20% lighter version of the original color is
#E9EAFF, and Hex
#8384C9 is the 20% darker color. If the color is saturated by 10%, you get
#B4B5FF. If the color is desaturated by 10%, the color
#B8B9F7 is obtained.