The hex color #1b50e4 is a dark color. The web-safe version is Hex
#3366CC. A complementary color is
#E4AF1B. The grayscale version is
#707070. A 20% lighter version of the original color is
#4E83FF, and Hex
#001DB1 is the 20% darker color. If the color is saturated by 10%, you get
#134DF0. If the color is desaturated by 10%, the color
#2353D8 is obtained.