The hex color #27799c is a dark color. The web-safe version is Hex
#336699. A complementary color is
#D88663. The grayscale version is
#696969. A 20% lighter version of the original color is
#5AACCF, and Hex
#004669 is the 20% darker color. If the color is saturated by 10%, you get
#207BA1. If the color is desaturated by 10%, the color
#2E7797 is obtained.