The hex color #a02e3d is a dark color. The web-safe version is Hex
#993333. A complementary color is
#5FD1C2. The grayscale version is
#595959. A 20% lighter version of the original color is
#D36170, and Hex
#6D000A is the 20% darker color. If the color is saturated by 10%, you get
#A72A3A. If the color is desaturated by 10%, the color
#993240 is obtained.