The hex color #1f7fbd is a dark color. The web-safe version is Hex
#3366CC. A complementary color is
#E08042. The grayscale version is
#747474. A 20% lighter version of the original color is
#52B2F0, and Hex
#004C8A is the 20% darker color. If the color is saturated by 10%, you get
#1780C4. If the color is desaturated by 10%, the color
#277EB6 is obtained.