The hex color #1a23fa is a dark color. The web-safe version is Hex
#3333FF. A complementary color is
#E5DC05. The grayscale version is
#686868. A 20% lighter version of the original color is
#4D56FF, and Hex
#0000C7 is the 20% darker color. If the color is saturated by 10%, you get
#121CFF. If the color is desaturated by 10%, the color
#222AEB is obtained.