The hex color #c01b5d is a dark color. The web-safe version is Hex
#CC3366. A complementary color is
#3FE4A2. The grayscale version is
#686868. A 20% lighter version of the original color is
#F34E90, and Hex
#8D002A is the 20% darker color. If the color is saturated by 10%, you get
#C9135C. If the color is desaturated by 10%, the color
#B7235E is obtained.