The hex color #e65f07 is a dark color. The web-safe version is Hex
#FF6600. A complementary color is
#19A0F8. The grayscale version is
#6F6F6F. A 20% lighter version of the original color is
#FF923A, and Hex
#B32C00 is the 20% darker color. If the color is saturated by 10%, you get
#F25D00. If the color is desaturated by 10%, the color
#DA6111 is obtained.