The hex color #240a2c is a dark color. The web-safe version is Hex
#330033. A complementary color is
#DBF5D3. The grayscale version is
#1E1E1E. A 20% lighter version of the original color is
#573D5F, and Hex
#000000 is the 20% darker color. If the color is saturated by 10%, you get
#25082D. If the color is desaturated by 10%, the color
#230C2B is obtained.