The hex color #6880a5 is a dark color. The web-safe version is Hex
#669999. A complementary color is
#977F5A. The grayscale version is
#848484. A 20% lighter version of the original color is
#9BB3D8, and Hex
#354D72 is the 20% darker color. If the color is saturated by 10%, you get
#6580A8. If the color is desaturated by 10%, the color
#6B80A2 is obtained.