The hex color #f15f3d is a light color. The web-safe version is Hex
#FF6633. A complementary color is
#0EA0C2. The grayscale version is
#848484. A 20% lighter version of the original color is
#FF9270, and Hex
#BE2C0A is the 20% darker color. If the color is saturated by 10%, you get
#FC5B36. If the color is desaturated by 10%, the color
#E66344 is obtained.