The hex color #2f435f is a dark color. The web-safe version is Hex
#333366. A complementary color is
#D0BCA0. The grayscale version is
#464646. A 20% lighter version of the original color is
#627692, and Hex
#00102C is the 20% darker color. If the color is saturated by 10%, you get
#2D4362. If the color is desaturated by 10%, the color
#31435C is obtained.