The hex color #1a687d is a dark color. The web-safe version is Hex
#336666. A complementary color is
#E59782. The grayscale version is
#555555. A 20% lighter version of the original color is
#4D9BB0, and Hex
#00354A is the 20% darker color. If the color is saturated by 10%, you get
#146A81. If the color is desaturated by 10%, the color
#206679 is obtained.