The hex color #ff3b57 is a dark color. The web-safe version is Hex
#FF3366. A complementary color is
#00C4A8. The grayscale version is
#868686. A 20% lighter version of the original color is
#FF6E8A, and Hex
#CC0824 is the 20% darker color. If the color is saturated by 10%, you get
#FF3452. If the color is desaturated by 10%, the color
#F3425C is obtained.