The hex color #2e3fd1 is a dark color. The web-safe version is Hex
#3333CC. A complementary color is
#D1C02E. The grayscale version is
#6A6A6A. A 20% lighter version of the original color is
#6172FF, and Hex
#000C9E is the 20% darker color. If the color is saturated by 10%, you get
#283BDB. If the color is desaturated by 10%, the color
#3443C7 is obtained.