The hex color #3d27e3 is a dark color. The web-safe version is Hex
#3333CC. A complementary color is
#C2D81C. The grayscale version is
#6D6D6D. A 20% lighter version of the original color is
#705AFF, and Hex
#0A00B0 is the 20% darker color. If the color is saturated by 10%, you get
#3820EF. If the color is desaturated by 10%, the color
#422ED7 is obtained.