The hex color #f8d82b is a light color. The web-safe version is Hex
#FFCC33. A complementary color is
#0727D4. The grayscale version is
#A9A9A9. A 20% lighter version of the original color is
#FFFF5E, and Hex
#C5A500 is the 20% darker color. If the color is saturated by 10%, you get
#FFDD1E. If the color is desaturated by 10%, the color
#F0D338 is obtained.