The hex color #2e77a5 is a dark color. The web-safe version is Hex
#336699. A complementary color is
#D1885A. The grayscale version is
#6E6E6E. A 20% lighter version of the original color is
#61AAD8, and Hex
#004472 is the 20% darker color. If the color is saturated by 10%, you get
#2878AB. If the color is desaturated by 10%, the color
#3476A0 is obtained.