The hex color #f90a7a is a dark color. The web-safe version is Hex
#FF0066. A complementary color is
#06F585. The grayscale version is
#7F7F7F. A 20% lighter version of the original color is
#FF3DAD, and Hex
#C60047 is the 20% darker color. If the color is saturated by 10%, you get
#FF007A. If the color is desaturated by 10%, the color
#ED167B is obtained.