The hex color #3e286e is a dark color. The web-safe version is Hex
#333366. A complementary color is
#C1D791. The grayscale version is
#474747. A 20% lighter version of the original color is
#715BA1, and Hex
#0B003B is the 20% darker color. If the color is saturated by 10%, you get
#3D2572. If the color is desaturated by 10%, the color
#3F2B6A is obtained.