The hex color #1f182f is a dark color. The web-safe version is Hex
#330033. A complementary color is
#E0E7D0. The grayscale version is
#222222. A 20% lighter version of the original color is
#524B62, and Hex
#000000 is the 20% darker color. If the color is saturated by 10%, you get
#1F1730. If the color is desaturated by 10%, the color
#1F192E is obtained.