The hex color #f5575a is a light color. The web-safe version is Hex
#FF6666. A complementary color is
#0AA8A5. The grayscale version is
#8D8D8D. A 20% lighter version of the original color is
#FF8A8D, and Hex
#C22427 is the 20% darker color. If the color is saturated by 10%, you get
#FF5255. If the color is desaturated by 10%, the color
#EB5C5F is obtained.