The hex color #78857d is a light color. The web-safe version is Hex
#669966. A complementary color is
#877A82. The grayscale version is
#7E7E7E. A 20% lighter version of the original color is
#ABB8B0, and Hex
#45524A is the 20% darker color. If the color is saturated by 10%, you get
#77867D. If the color is desaturated by 10%, the color
#79847D is obtained.