The hex color #77ba2c is a light color. The web-safe version is Hex
#66CC33. A complementary color is
#8845D3. The grayscale version is
#747474. A 20% lighter version of the original color is
#AAED5F, and Hex
#448700 is the 20% darker color. If the color is saturated by 10%, you get
#77C125. If the color is desaturated by 10%, the color
#77B333 is obtained.