The hex color #3b48e3 is a dark color. The web-safe version is Hex
#3333CC. A complementary color is
#C4B71C. The grayscale version is
#777777. A 20% lighter version of the original color is
#6E7BFF, and Hex
#0815B0 is the 20% darker color. If the color is saturated by 10%, you get
#3543EE. If the color is desaturated by 10%, the color
#414DD8 is obtained.