The hex color #c6e18a is a light color. The web-safe version is Hex
#CCCC99. A complementary color is
#391E75. The grayscale version is
#BBBBBB. A 20% lighter version of the original color is
#F9FFBD, and Hex
#93AE57 is the 20% darker color. If the color is saturated by 10%, you get
#C7E585. If the color is desaturated by 10%, the color
#C5DD8F is obtained.