The hex color #e9f58d is a light color. The web-safe version is Hex
#FFFF99. A complementary color is
#160A72. The grayscale version is
#CECECE. A 20% lighter version of the original color is
#FFFFC0, and Hex
#B6C25A is the 20% darker color. If the color is saturated by 10%, you get
#ECF986. If the color is desaturated by 10%, the color
#E6F194 is obtained.