The hex color #1d8ed9 is a dark color. The web-safe version is Hex
#3399CC. A complementary color is
#E27126. The grayscale version is
#818181. A 20% lighter version of the original color is
#50C1FF, and Hex
#005BA6 is the 20% darker color. If the color is saturated by 10%, you get
#138FE2. If the color is desaturated by 10%, the color
#278DD0 is obtained.