The hex color #B5E255 is a light color. The web-safe version is Hex
#CCCC66. A complementary color is
#4A1DAA. The grayscale version is
#A4A4A4. A 20% lighter version of the original color is
#E8FF88, and Hex
#82AF22 is the 20% darker color. If the color is saturated by 10%, you get
#B7E84D. If the color is desaturated by 10%, the color
#B3DC5D is obtained.