The hex color #f4df4c is a light color. The web-safe version is Hex
#FFCC33. A complementary color is
#0B20B3. The grayscale version is
#B5B5B5. A 20% lighter version of the original color is
#FFFF7F, and Hex
#C1AC19 is the 20% darker color. If the color is saturated by 10%, you get
#FAE342. If the color is desaturated by 10%, the color
#EEDB57 is obtained.