The hex color #1d9adb is a dark color. The web-safe version is Hex
#3399CC. A complementary color is
#E26524. The grayscale version is
#868686. A 20% lighter version of the original color is
#50CDFF, and Hex
#0067A8 is the 20% darker color. If the color is saturated by 10%, you get
#139CE4. If the color is desaturated by 10%, the color
#2898D3 is obtained.