The hex color #3e28f2 is a dark color. The web-safe version is Hex
#3333FF. A complementary color is
#C1D70D. The grayscale version is
#737373. A 20% lighter version of the original color is
#715BFF, and Hex
#0B00BF is the 20% darker color. If the color is saturated by 10%, you get
#3921FF. If the color is desaturated by 10%, the color
#432FE5 is obtained.