The hex color #c4d77a is a light color. The web-safe version is Hex
#CCCC66. A complementary color is
#3B2885. The grayscale version is
#B2B2B2. A 20% lighter version of the original color is
#F7FFAD, and Hex
#91A447 is the 20% darker color. If the color is saturated by 10%, you get
#C6DB74. If the color is desaturated by 10%, the color
#C2D380 is obtained.