The hex color #1c5ee9 is a dark color. The web-safe version is Hex
#3366FF. A complementary color is
#E3A116. The grayscale version is
#767676. A 20% lighter version of the original color is
#4F91FF, and Hex
#002BB6 is the 20% darker color. If the color is saturated by 10%, you get
#135CF4. If the color is desaturated by 10%, the color
#2560DE is obtained.