The hex color #78917c is a light color. The web-safe version is Hex
#669966. A complementary color is
#876E83. The grayscale version is
#828282. A 20% lighter version of the original color is
#ABC4AF, and Hex
#455E49 is the 20% darker color. If the color is saturated by 10%, you get
#77937B. If the color is desaturated by 10%, the color
#798F7D is obtained.