The hex color #ffbf00 is a light color. The web-safe version is Hex
#FFCC00. A complementary color is
#0040FF. The grayscale version is
#959595. A 20% lighter version of the original color is
#FFF233, and Hex
#CC8C00 is the 20% darker color. If the color is saturated by 10%, you get
#FFC300. If the color is desaturated by 10%, the color
#F4BB0F is obtained.