The hex color #d40f5d is a dark color. The web-safe version is Hex
#CC0066. A complementary color is
#2BF0A2. The grayscale version is
#6B6B6B. A 20% lighter version of the original color is
#FF4290, and Hex
#A1002A is the 20% darker color. If the color is saturated by 10%, you get
#DF065C. If the color is desaturated by 10%, the color
#C9185E is obtained.