The hex color #0990cc is a dark color. The web-safe version is Hex
#0099CC. A complementary color is
#F66F33. The grayscale version is
#777777. A 20% lighter version of the original color is
#3CC3FF, and Hex
#005D99 is the 20% darker color. If the color is saturated by 10%, you get
#0093D5. If the color is desaturated by 10%, the color
#148EC4 is obtained.