The hex color #3b24d0 is a dark color. The web-safe version is Hex
#3333CC. A complementary color is
#C4DB2F. The grayscale version is
#656565. A 20% lighter version of the original color is
#6E57FF, and Hex
#08009D is the 20% darker color. If the color is saturated by 10%, you get
#371EDB. If the color is desaturated by 10%, the color
#3F2BC5 is obtained.