The hex color #fa2e09 is a dark color. The web-safe version is Hex
#FF3300. A complementary color is
#05D1F6. The grayscale version is
#666666. A 20% lighter version of the original color is
#FF613C, and Hex
#C70000 is the 20% darker color. If the color is saturated by 10%, you get
#FF2800. If the color is desaturated by 10%, the color
#EB3412 is obtained.