The hex color #fa21c0 is a dark color. The web-safe version is Hex
#FF33CC. A complementary color is
#05DE3F. The grayscale version is
#9E9E9E. A 20% lighter version of the original color is
#FF54F3, and Hex
#C7008D is the 20% darker color. If the color is saturated by 10%, you get
#FF14C3. If the color is desaturated by 10%, the color
#F12EBD is obtained.