The hex color #27475c is a dark color. The web-safe version is Hex
#333366. A complementary color is
#D8B8A3. The grayscale version is
#434343. A 20% lighter version of the original color is
#5A7A8F, and Hex
#001429 is the 20% darker color. If the color is saturated by 10%, you get
#24475E. If the color is desaturated by 10%, the color
#2A475A is obtained.