The hex color #1b7ecc is a dark color. The web-safe version is Hex
#3366CC. A complementary color is
#E48133. The grayscale version is
#777777. A 20% lighter version of the original color is
#4EB1FF, and Hex
#004B99 is the 20% darker color. If the color is saturated by 10%, you get
#127FD5. If the color is desaturated by 10%, the color
#247DC4 is obtained.