The hex color #fa2c3f is a dark color. The web-safe version is Hex
#FF3333. A complementary color is
#05D3C0. The grayscale version is
#777777. A 20% lighter version of the original color is
#FF5F72, and Hex
#C7000C is the 20% darker color. If the color is saturated by 10%, you get
#FF2539. If the color is desaturated by 10%, the color
#ED3445 is obtained.