The hex color #bcd511 is a light color. The web-safe version is Hex
#CCCC00. A complementary color is
#432AEE. The grayscale version is
#8B8B8B. A 20% lighter version of the original color is
#EFFF44, and Hex
#89A200 is the 20% darker color. If the color is saturated by 10%, you get
#C1DC05. If the color is desaturated by 10%, the color
#B7CE1D is obtained.