The hex color #174e6c is a dark color. The web-safe version is Hex
#006666. A complementary color is
#E8B193. The grayscale version is
#464646. A 20% lighter version of the original color is
#4A819F, and Hex
#001B39 is the 20% darker color. If the color is saturated by 10%, you get
#124F70. If the color is desaturated by 10%, the color
#1C4D68 is obtained.