The hex color #6680cc is a light color. The web-safe version is Hex
#6699CC. A complementary color is
#997F33. The grayscale version is
#919191. A 20% lighter version of the original color is
#99B3FF, and Hex
#334D99 is the 20% darker color. If the color is saturated by 10%, you get
#627ED2. If the color is desaturated by 10%, the color
#6A82C6 is obtained.