The hex color #d42f55 is a dark color. The web-safe version is Hex
#CC3366. A complementary color is
#2BD0AA. The grayscale version is
#737373. A 20% lighter version of the original color is
#FF6288, and Hex
#A10022 is the 20% darker color. If the color is saturated by 10%, you get
#DE2852. If the color is desaturated by 10%, the color
#CA3658 is obtained.