The hex color #f7d30e is a light color. The web-safe version is Hex
#FFCC00. A complementary color is
#082CF1. The grayscale version is
#9D9D9D. A 20% lighter version of the original color is
#FFFF41, and Hex
#C4A000 is the 20% darker color. If the color is saturated by 10%, you get
#FFD800. If the color is desaturated by 10%, the color
#EECE1C is obtained.