The hex color #830f3c is a dark color. The web-safe version is Hex
#990033. A complementary color is
#7CF0C3. The grayscale version is
#454545. A 20% lighter version of the original color is
#B6426F, and Hex
#500009 is the 20% darker color. If the color is saturated by 10%, you get
#890A3B. If the color is desaturated by 10%, the color
#7D143D is obtained.