The hex color #f77a3a is a light color. The web-safe version is Hex
#FF6633. A complementary color is
#0885C5. The grayscale version is
#8E8E8E. A 20% lighter version of the original color is
#FFAD6D, and Hex
#C44707 is the 20% darker color. If the color is saturated by 10%, you get
#FF7832. If the color is desaturated by 10%, the color
#ED7C42 is obtained.