The hex color #1f8fa2 is a dark color. The web-safe version is Hex
#339999. A complementary color is
#E0705D. The grayscale version is
#707070. A 20% lighter version of the original color is
#52C2D5, and Hex
#005C6F is the 20% darker color. If the color is saturated by 10%, you get
#1792A7. If the color is desaturated by 10%, the color
#278C9D is obtained.