The hex color #f4f64d is a light color. The web-safe version is Hex
#FFFF66. A complementary color is
#0B09B2. The grayscale version is
#BDBDBD. A 20% lighter version of the original color is
#FFFF80, and Hex
#C1C31A is the 20% darker color. If the color is saturated by 10%, you get
#FAFC42. If the color is desaturated by 10%, the color
#EFF058 is obtained.