The hex color #2f77e4 is a dark color. The web-safe version is Hex
#3366CC. A complementary color is
#D0881B. The grayscale version is
#838383. A 20% lighter version of the original color is
#62AAFF, and Hex
#0044B1 is the 20% darker color. If the color is saturated by 10%, you get
#2776EE. If the color is desaturated by 10%, the color
#3778DA is obtained.