The hex color #6e77a8 is a dark color. The web-safe version is Hex
#666699. A complementary color is
#918857. The grayscale version is
#848484. A 20% lighter version of the original color is
#A1AADB, and Hex
#3B4475 is the 20% darker color. If the color is saturated by 10%, you get
#6C76AC. If the color is desaturated by 10%, the color
#7078A4 is obtained.