The hex color #e7f61b is a light color. The web-safe version is Hex
#FFFF33. A complementary color is
#1809E4. The grayscale version is
#A8A8A8. A 20% lighter version of the original color is
#FFFF4E, and Hex
#B4C300 is the 20% darker color. If the color is saturated by 10%, you get
#EDFE0D. If the color is desaturated by 10%, the color
#E1EE29 is obtained.