The hex color #e8c00b is a light color. The web-safe version is Hex
#FFCC00. A complementary color is
#173FF4. The grayscale version is
#919191. A 20% lighter version of the original color is
#FFF33E, and Hex
#B58D00 is the 20% darker color. If the color is saturated by 10%, you get
#F1C500. If the color is desaturated by 10%, the color
#DFBB18 is obtained.