The hex color #6a737c is a dark color. The web-safe version is Hex
#666666. A complementary color is
#958C83. The grayscale version is
#737373. A 20% lighter version of the original color is
#9DA6AF, and Hex
#374049 is the 20% darker color. If the color is saturated by 10%, you get
#69737D. If the color is desaturated by 10%, the color
#6B737B is obtained.