The hex color #6A858B is a dark color. The web-safe version is Hex
#669999. A complementary color is
#957A74. The grayscale version is
#7E7E7E. A 20% lighter version of the original color is
#9DB8BE, and Hex
#375258 is the 20% darker color. If the color is saturated by 10%, you get
#68868C. If the color is desaturated by 10%, the color
#6C848A is obtained.