The hex color #1f9cdd is a dark color. The web-safe version is Hex
#3399CC. A complementary color is
#E06322. The grayscale version is
#888888. A 20% lighter version of the original color is
#52CFFF, and Hex
#0069AA is the 20% darker color. If the color is saturated by 10%, you get
#159EE6. If the color is desaturated by 10%, the color
#2A9AD5 is obtained.