The hex color #77de7c is a light color. The web-safe version is Hex
#66CC66. A complementary color is
#882183. The grayscale version is
#9B9B9B. A 20% lighter version of the original color is
#AAFFAF, and Hex
#44AB49 is the 20% darker color. If the color is saturated by 10%, you get
#73E579. If the color is desaturated by 10%, the color
#7BD77F is obtained.