The hex color #E5E419 is a light color. The web-safe version is Hex
#CCCC00. A complementary color is
#1A1BE6. The grayscale version is
#A1A1A1. A 20% lighter version of the original color is
#FFFF4C, and Hex
#B2B100 is the 20% darker color. If the color is saturated by 10%, you get
#ECEB0B. If the color is desaturated by 10%, the color
#DEDD27 is obtained.