The hex color #d3fa1d is a light color. The web-safe version is Hex
#CCFF33. A complementary color is
#2C05E2. The grayscale version is
#A3A3A3. A 20% lighter version of the original color is
#FFFF50, and Hex
#A0C700 is the 20% darker color. If the color is saturated by 10%, you get
#D8FF10. If the color is desaturated by 10%, the color
#CEF12A is obtained.