The hex color #3b59fb is a dark color. The web-safe version is Hex
#3366FF. A complementary color is
#C4A604. The grayscale version is
#858585. A 20% lighter version of the original color is
#6E8CFF, and Hex
#0826C8 is the 20% darker color. If the color is saturated by 10%, you get
#3455FF. If the color is desaturated by 10%, the color
#425DEF is obtained.