The hex color #274e68 is a dark color. The web-safe version is Hex
#336666. A complementary color is
#D8B197. The grayscale version is
#4A4A4A. A 20% lighter version of the original color is
#5A819B, and Hex
#001B35 is the 20% darker color. If the color is saturated by 10%, you get
#244E6B. If the color is desaturated by 10%, the color
#2A4E65 is obtained.