The hex color #199dcc is a dark color. The web-safe version is Hex
#0099CC. A complementary color is
#E66233. The grayscale version is
#818181. A 20% lighter version of the original color is
#4CD0FF, and Hex
#006A99 is the 20% darker color. If the color is saturated by 10%, you get
#0FA0D4. If the color is desaturated by 10%, the color
#239AC4 is obtained.