The hex color #19375c is a dark color. The web-safe version is Hex
#003366. A complementary color is
#E6C8A3. The grayscale version is
#393939. A 20% lighter version of the original color is
#4C6A8F, and Hex
#000429 is the 20% darker color. If the color is saturated by 10%, you get
#16375F. If the color is desaturated by 10%, the color
#1C3759 is obtained.