The hex color #2f729f is a dark color. The web-safe version is Hex
#336699. A complementary color is
#D08D60. The grayscale version is
#6B6B6B. A 20% lighter version of the original color is
#62A5D2, and Hex
#003F6C is the 20% darker color. If the color is saturated by 10%, you get
#2973A4. If the color is desaturated by 10%, the color
#35719A is obtained.