The hex color #cde59d is a light color. The web-safe version is Hex
#CCCC99. A complementary color is
#321A62. The grayscale version is
#C5C5C5. A 20% lighter version of the original color is
#FFFFD0, and Hex
#9AB26A is the 20% darker color. If the color is saturated by 10%, you get
#CEE899. If the color is desaturated by 10%, the color
#CCE2A1 is obtained.