The hex color #e12e3d is a dark color. The web-safe version is Hex
#CC3333. A complementary color is
#1ED1C2. The grayscale version is
#6F6F6F. A 20% lighter version of the original color is
#FF6170, and Hex
#AE000A is the 20% darker color. If the color is saturated by 10%, you get
#EC2838. If the color is desaturated by 10%, the color
#D63442 is obtained.