The hex color #18495c is a dark color. The web-safe version is Hex
#003366. A complementary color is
#E7B6A3. The grayscale version is
#3F3F3F. A 20% lighter version of the original color is
#4B7C8F, and Hex
#001629 is the 20% darker color. If the color is saturated by 10%, you get
#144A5F. If the color is desaturated by 10%, the color
#1C4859 is obtained.