The hex color #1e9ee3 is a dark color. The web-safe version is Hex
#3399CC. A complementary color is
#E1611C. The grayscale version is
#8A8A8A. A 20% lighter version of the original color is
#51D1FF, and Hex
#006BB0 is the 20% darker color. If the color is saturated by 10%, you get
#13A0EC. If the color is desaturated by 10%, the color
#299CDA is obtained.