The hex color #FF425B is a dark color. The web-safe version is Hex
#FF3366. A complementary color is
#00BDA4. The grayscale version is
#898989. A 20% lighter version of the original color is
#FF758E, and Hex
#CC0F28 is the 20% darker color. If the color is saturated by 10%, you get
#FF3B56. If the color is desaturated by 10%, the color
#F34960 is obtained.