The hex color #0187a4 is a dark color. The web-safe version is Hex
#009999. A complementary color is
#FE785B. The grayscale version is
#646464. A 20% lighter version of the original color is
#34BAD7, and Hex
#005471 is the 20% darker color. If the color is saturated by 10%, you get
#008BAA. If the color is desaturated by 10%, the color
#0B849E is obtained.