The hex color #514c4c is a dark color. The web-safe version is Hex
#663333. A complementary color is
#AEB3B3. The grayscale version is
#4E4E4E. A 20% lighter version of the original color is
#847F7F, and Hex
#1E1919 is the 20% darker color. If the color is saturated by 10%, you get
#514C4C. If the color is desaturated by 10%, the color
#514C4C is obtained.