The hex color #616a6c is a dark color. The web-safe version is Hex
#666666. A complementary color is
#9E9593. The grayscale version is
#686868. A 20% lighter version of the original color is
#949D9F, and Hex
#2E3739 is the 20% darker color. If the color is saturated by 10%, you get
#606A6C. If the color is desaturated by 10%, the color
#626A6C is obtained.