The hex color #fa31d0 is a dark color. The web-safe version is Hex
#FF33CC. A complementary color is
#05CE2F. The grayscale version is
#A9A9A9. A 20% lighter version of the original color is
#FF64FF, and Hex
#C7009D is the 20% darker color. If the color is saturated by 10%, you get
#FF25D4. If the color is desaturated by 10%, the color
#F23DCC is obtained.