The hex color #2c537c is a dark color. The web-safe version is Hex
#336666. A complementary color is
#D3AC83. The grayscale version is
#545454. A 20% lighter version of the original color is
#5F86AF, and Hex
#002049 is the 20% darker color. If the color is saturated by 10%, you get
#285380. If the color is desaturated by 10%, the color
#305378 is obtained.