The hex color #c3c4fe is a light color. The web-safe version is Hex
#CCCCFF. A complementary color is
#3C3B01. The grayscale version is
#D7D7D7. A 20% lighter version of the original color is
#F6F7FF, and Hex
#9091CB is the 20% darker color. If the color is saturated by 10%, you get
#C1C2FF. If the color is desaturated by 10%, the color
#C5C6FA is obtained.