The hex color #c36a3a is a dark color. The web-safe version is Hex
#CC6633. A complementary color is
#3C95C5. The grayscale version is
#787878. A 20% lighter version of the original color is
#F69D6D, and Hex
#903707 is the 20% darker color. If the color is saturated by 10%, you get
#CB6934. If the color is desaturated by 10%, the color
#BB6B40 is obtained.