The hex color #4b3ddc is a dark color. The web-safe version is Hex
#3333CC. A complementary color is
#B4C223. The grayscale version is
#777777. A 20% lighter version of the original color is
#7E70FF, and Hex
#180AA9 is the 20% darker color. If the color is saturated by 10%, you get
#4737E6. If the color is desaturated by 10%, the color
#4F43D2 is obtained.