The hex color #FDFF89 is a light color. The web-safe version is Hex
#FFFF99. A complementary color is
#020076. The grayscale version is
#D7D7D7. A 20% lighter version of the original color is
#FFFFBC, and Hex
#CACC56 is the 20% darker color. If the color is saturated by 10%, you get
#FFFF81. If the color is desaturated by 10%, the color
#F9FB91 is obtained.