The hex color #3e23a3 is a dark color. The web-safe version is Hex
#333399. A complementary color is
#C1DC5C. The grayscale version is
#575757. A 20% lighter version of the original color is
#7156D6, and Hex
#0B0070 is the 20% darker color. If the color is saturated by 10%, you get
#3C1EAB. If the color is desaturated by 10%, the color
#40289B is obtained.