The hex color #d54c37 is a dark color. The web-safe version is Hex
#CC3333. A complementary color is
#2AB3C8. The grayscale version is
#737373. A 20% lighter version of the original color is
#FF7F6A, and Hex
#A21904 is the 20% darker color. If the color is saturated by 10%, you get
#DF4831. If the color is desaturated by 10%, the color
#CB503D is obtained.