The hex color #77d35d is a light color. The web-safe version is Hex
#66CC66. A complementary color is
#882CA2. The grayscale version is
#8D8D8D. A 20% lighter version of the original color is
#AAFF90, and Hex
#44A02A is the 20% darker color. If the color is saturated by 10%, you get
#75DA58. If the color is desaturated by 10%, the color
#79CC62 is obtained.