The hex color #f9fc5f is a light color. The web-safe version is Hex
#FFFF66. A complementary color is
#0603A0. The grayscale version is
#C7C7C7. A 20% lighter version of the original color is
#FFFF92, and Hex
#C6C92C is the 20% darker color. If the color is saturated by 10%, you get
#FEFF55. If the color is desaturated by 10%, the color
#F4F769 is obtained.