The hex color #1f5ccc is a dark color. The web-safe version is Hex
#3366CC. A complementary color is
#E0A333. The grayscale version is
#6D6D6D. A 20% lighter version of the original color is
#528FFF, and Hex
#002999 is the 20% darker color. If the color is saturated by 10%, you get
#175AD6. If the color is desaturated by 10%, the color
#275EC3 is obtained.