The hex color #f3f9ab is a light color. The web-safe version is Hex
#FFFF99. A complementary color is
#0C0654. The grayscale version is
#DDDDDD. A 20% lighter version of the original color is
#FFFFDE, and Hex
#C0C678 is the 20% darker color. If the color is saturated by 10%, you get
#F5FCA6. If the color is desaturated by 10%, the color
#F1F6B0 is obtained.