The hex color #3e33e0 is a dark color. The web-safe version is Hex
#3333CC. A complementary color is
#C1CC1F. The grayscale version is
#707070. A 20% lighter version of the original color is
#7166FF, and Hex
#0B00AD is the 20% darker color. If the color is saturated by 10%, you get
#392DEB. If the color is desaturated by 10%, the color
#4339D5 is obtained.