The hex color #6b756c is a dark color. The web-safe version is Hex
#666666. A complementary color is
#948A93. The grayscale version is
#6F6F6F. A 20% lighter version of the original color is
#9EA89F, and Hex
#384239 is the 20% darker color. If the color is saturated by 10%, you get
#6B766C. If the color is desaturated by 10%, the color
#6B746C is obtained.