The hex color #c1d145 is a light color. The web-safe version is Hex
#CCCC33. A complementary color is
#3E2EBA. The grayscale version is
#9D9D9D. A 20% lighter version of the original color is
#F4FF78, and Hex
#8E9E12 is the 20% darker color. If the color is saturated by 10%, you get
#C5D63C. If the color is desaturated by 10%, the color
#BDCC4E is obtained.