The hex color #f3e942 is a light color. The web-safe version is Hex
#FFFF33. A complementary color is
#0C16BD. The grayscale version is
#B5B5B5. A 20% lighter version of the original color is
#FFFF75, and Hex
#C0B60F is the 20% darker color. If the color is saturated by 10%, you get
#F9EE37. If the color is desaturated by 10%, the color
#EDE44D is obtained.