The hex color #1a39fc is a dark color. The web-safe version is Hex
#3333FF. A complementary color is
#E5C603. The grayscale version is
#707070. A 20% lighter version of the original color is
#4D6CFF, and Hex
#0006C9 is the 20% darker color. If the color is saturated by 10%, you get
#1134FF. If the color is desaturated by 10%, the color
#233EEE is obtained.