The hex color #3d2fdb is a dark color. The web-safe version is Hex
#3333CC. A complementary color is
#C2D024. The grayscale version is
#6D6D6D. A 20% lighter version of the original color is
#7062FF, and Hex
#0A00A8 is the 20% darker color. If the color is saturated by 10%, you get
#3829E6. If the color is desaturated by 10%, the color
#4235D0 is obtained.