The hex color #590c0c is a dark color. The web-safe version is Hex
#660000. A complementary color is
#A6F3F3. The grayscale version is
#262626. A 20% lighter version of the original color is
#8C3F3F, and Hex
#260000 is the 20% darker color. If the color is saturated by 10%, you get
#5E0909. If the color is desaturated by 10%, the color
#540F0F is obtained.