The hex color #f23a43 is a dark color. The web-safe version is Hex
#FF3333. A complementary color is
#0DC5BC. The grayscale version is
#7A7A7A. A 20% lighter version of the original color is
#FF6D76, and Hex
#BF0710 is the 20% darker color. If the color is saturated by 10%, you get
#FE343D. If the color is desaturated by 10%, the color
#E64049 is obtained.