The hex color #676f73 is a dark color. The web-safe version is Hex
#666666. A complementary color is
#98908C. The grayscale version is
#6E6E6E. A 20% lighter version of the original color is
#9AA2A6, and Hex
#343C40 is the 20% darker color. If the color is saturated by 10%, you get
#666F74. If the color is desaturated by 10%, the color
#686F72 is obtained.