The hex color #f81b7b is a dark color. The web-safe version is Hex
#FF3366. A complementary color is
#07E484. The grayscale version is
#858585. A 20% lighter version of the original color is
#FF4EAE, and Hex
#C50048 is the 20% darker color. If the color is saturated by 10%, you get
#FF107A. If the color is desaturated by 10%, the color
#EC267C is obtained.