The hex color #E65B05 is a dark color. The web-safe version is Hex
#FF6600. A complementary color is
#19A4FA. The grayscale version is
#6D6D6D. A 20% lighter version of the original color is
#FF8E38, and Hex
#B32800 is the 20% darker color. If the color is saturated by 10%, you get
#F25900. If the color is desaturated by 10%, the color
#DA5D0F is obtained.