The hex color #5da21d is a dark color. The web-safe version is Hex
#669933. A complementary color is
#A25DE2. The grayscale version is
#5F5F5F. A 20% lighter version of the original color is
#90D550, and Hex
#2A6F00 is the 20% darker color. If the color is saturated by 10%, you get
#5DA916. If the color is desaturated by 10%, the color
#5D9B24 is obtained.