The hex color #1c87a4 is a dark color. The web-safe version is Hex
#339999. A complementary color is
#E3785B. The grayscale version is
#6D6D6D. A 20% lighter version of the original color is
#4FBAD7, and Hex
#005471 is the 20% darker color. If the color is saturated by 10%, you get
#148AAA. If the color is desaturated by 10%, the color
#24849F is obtained.