The hex color #c55e5a is a dark color. The web-safe version is Hex
#CC6666. A complementary color is
#3AA1A5. The grayscale version is
#7F7F7F. A 20% lighter version of the original color is
#F8918D, and Hex
#922B27 is the 20% darker color. If the color is saturated by 10%, you get
#CC5B56. If the color is desaturated by 10%, the color
#BE615E is obtained.