The hex color #22404c is a dark color. The web-safe version is Hex
#333333. A complementary color is
#DDBFB3. The grayscale version is
#3A3A3A. A 20% lighter version of the original color is
#55737F, and Hex
#000D19 is the 20% darker color. If the color is saturated by 10%, you get
#20414E. If the color is desaturated by 10%, the color
#243F4A is obtained.