The hex color #a4d57f is a light color. The web-safe version is Hex
#99CC66. A complementary color is
#5B2A80. The grayscale version is
#A8A8A8. A 20% lighter version of the original color is
#D7FFB2, and Hex
#71A24C is the 20% darker color. If the color is saturated by 10%, you get
#A4DA7B. If the color is desaturated by 10%, the color
#A4D183 is obtained.