The hex color #1b34cd is a dark color. The web-safe version is Hex
#3333CC. A complementary color is
#E4CB32. The grayscale version is
#5F5F5F. A 20% lighter version of the original color is
#4E67FF, and Hex
#00019A is the 20% darker color. If the color is saturated by 10%, you get
#1430D8. If the color is desaturated by 10%, the color
#2238C2 is obtained.