The hex color #1a42f7 is a dark color. The web-safe version is Hex
#3333FF. A complementary color is
#E5BD08. The grayscale version is
#717171. A 20% lighter version of the original color is
#4D75FF, and Hex
#000FC4 is the 20% darker color. If the color is saturated by 10%, you get
#113DFF. If the color is desaturated by 10%, the color
#2347EA is obtained.