The hex color #4f724f is a dark color. The web-safe version is Hex
#666666. A complementary color is
#B08DB0. The grayscale version is
#5B5B5B. A 20% lighter version of the original color is
#82A582, and Hex
#1C3F1C is the 20% darker color. If the color is saturated by 10%, you get
#4E744E. If the color is desaturated by 10%, the color
#507050 is obtained.