The hex color #674d3c is a dark color. The web-safe version is Hex
#666633. A complementary color is
#98B2C3. The grayscale version is
#505050. A 20% lighter version of the original color is
#9A806F, and Hex
#341A09 is the 20% darker color. If the color is saturated by 10%, you get
#694D3A. If the color is desaturated by 10%, the color
#654D3E is obtained.