The hex color #ff1b45 is a dark color. The web-safe version is Hex
#FF3333. A complementary color is
#00E4BA. The grayscale version is
#757575. A 20% lighter version of the original color is
#FF4E78, and Hex
#CC0012 is the 20% darker color. If the color is saturated by 10%, you get
#FF1240. If the color is desaturated by 10%, the color
#F1244A is obtained.