The hex color #2d34e3 is a dark color. The web-safe version is Hex
#3333CC. A complementary color is
#D2CB1C. The grayscale version is
#6C6C6C. A 20% lighter version of the original color is
#6067FF, and Hex
#0001B0 is the 20% darker color. If the color is saturated by 10%, you get
#272EEF. If the color is desaturated by 10%, the color
#333AD7 is obtained.