The hex color #c8e15b is a light color. The web-safe version is Hex
#CCCC66. A complementary color is
#371EA4. The grayscale version is
#ACACAC. A 20% lighter version of the original color is
#FBFF8E, and Hex
#95AE28 is the 20% darker color. If the color is saturated by 10%, you get
#CBE653. If the color is desaturated by 10%, the color
#C5DC63 is obtained.