The hex color #7e170c is a dark color. The web-safe version is Hex
#660000. A complementary color is
#81E8F3. The grayscale version is
#363636. A 20% lighter version of the original color is
#B14A3F, and Hex
#4B0000 is the 20% darker color. If the color is saturated by 10%, you get
#851408. If the color is desaturated by 10%, the color
#771A10 is obtained.