The hex color #b8fe6e is a light color. The web-safe version is Hex
#CCFF66. A complementary color is
#470191. The grayscale version is
#B7B7B7. A 20% lighter version of the original color is
#EBFFA1, and Hex
#85CB3B is the 20% darker color. If the color is saturated by 10%, you get
#B8FF67. If the color is desaturated by 10%, the color
#B8F775 is obtained.