The hex color #0188bc is a dark color. The web-safe version is Hex
#0099CC. A complementary color is
#FE7743. The grayscale version is
#6C6C6C. A 20% lighter version of the original color is
#34BBEF, and Hex
#005589 is the 20% darker color. If the color is saturated by 10%, you get
#008BC4. If the color is desaturated by 10%, the color
#0C85B4 is obtained.