The hex color #687d2a is a dark color. The web-safe version is Hex
#666633. A complementary color is
#9782D5. The grayscale version is
#5A5A5A. A 20% lighter version of the original color is
#9BB05D, and Hex
#354A00 is the 20% darker color. If the color is saturated by 10%, you get
#698025. If the color is desaturated by 10%, the color
#677A2F is obtained.