The hex color #18459c is a dark color. The web-safe version is Hex
#003399. A complementary color is
#E7BA63. The grayscale version is
#535353. A 20% lighter version of the original color is
#4B78CF, and Hex
#001269 is the 20% darker color. If the color is saturated by 10%, you get
#1244A3. If the color is desaturated by 10%, the color
#1E4695 is obtained.