The hex color #1b154c is a dark color. The web-safe version is Hex
#330033. A complementary color is
#E4EAB3. The grayscale version is
#292929. A 20% lighter version of the original color is
#4E487F, and Hex
#000019 is the 20% darker color. If the color is saturated by 10%, you get
#1A134F. If the color is desaturated by 10%, the color
#1C1749 is obtained.