The hex color #6e89a3 is a light color. The web-safe version is Hex
#669999. A complementary color is
#91765C. The grayscale version is
#898989. A 20% lighter version of the original color is
#A1BCD6, and Hex
#3B5670 is the 20% darker color. If the color is saturated by 10%, you get
#6B89A6. If the color is desaturated by 10%, the color
#7189A0 is obtained.