The hex color #5f765c is a dark color. The web-safe version is Hex
#666666. A complementary color is
#A089A3. The grayscale version is
#666666. A 20% lighter version of the original color is
#92A98F, and Hex
#2C4329 is the 20% darker color. If the color is saturated by 10%, you get
#5E785B. If the color is desaturated by 10%, the color
#60745D is obtained.