The hex color #3b43f8 is a dark color. The web-safe version is Hex
#3333FF. A complementary color is
#C4BC07. The grayscale version is
#7D7D7D. A 20% lighter version of the original color is
#6E76FF, and Hex
#0810C5 is the 20% darker color. If the color is saturated by 10%, you get
#343DFF. If the color is desaturated by 10%, the color
#4249EC is obtained.