The hex color #f8e11a is a light color. The web-safe version is Hex
#FFCC33. A complementary color is
#071EE5. The grayscale version is
#A6A6A6. A 20% lighter version of the original color is
#FFFF4D, and Hex
#C5AE00 is the 20% darker color. If the color is saturated by 10%, you get
#FFE70C. If the color is desaturated by 10%, the color
#F0DB28 is obtained.