The hex color #042FD2 is a dark color. The web-safe version is Hex
#0033CC. A complementary color is
#FBD02D. The grayscale version is
#575757. A 20% lighter version of the original color is
#3762FF, and Hex
#00009F is the 20% darker color. If the color is saturated by 10%, you get
#002BDE. If the color is desaturated by 10%, the color
#0C33C6 is obtained.