The hex color #6f77d6 is a dark color. The web-safe version is Hex
#6666CC. A complementary color is
#908829. The grayscale version is
#949494. A 20% lighter version of the original color is
#A2AAFF, and Hex
#3C44A3 is the 20% darker color. If the color is saturated by 10%, you get
#6B74DD. If the color is desaturated by 10%, the color
#737ACF is obtained.