The hex color #d33e5e is a dark color. The web-safe version is Hex
#CC3366. A complementary color is
#2CC1A1. The grayscale version is
#7A7A7A. A 20% lighter version of the original color is
#FF7191, and Hex
#A00B2B is the 20% darker color. If the color is saturated by 10%, you get
#DC385B. If the color is desaturated by 10%, the color
#CA4461 is obtained.