The hex color #ff198c is a dark color. The web-safe version is Hex
#FF0099. A complementary color is
#00E673. The grayscale version is
#8C8C8C. A 20% lighter version of the original color is
#FF4CBF, and Hex
#CC0059 is the 20% darker color. If the color is saturated by 10%, you get
#FF0E8C. If the color is desaturated by 10%, the color
#F4258C is obtained.