The hex color #d3f28d is a light color. The web-safe version is Hex
#CCFF99. A complementary color is
#2C0D72. The grayscale version is
#C6C6C6. A 20% lighter version of the original color is
#FFFFC0, and Hex
#A0BF5A is the 20% darker color. If the color is saturated by 10%, you get
#D4F687. If the color is desaturated by 10%, the color
#D2EE93 is obtained.