The hex color #227c99 is a dark color. The web-safe version is Hex
#336699. A complementary color is
#DD8366. The grayscale version is
#686868. A 20% lighter version of the original color is
#55AFCC, and Hex
#004966 is the 20% darker color. If the color is saturated by 10%, you get
#1B7E9E. If the color is desaturated by 10%, the color
#297A94 is obtained.