The hex color #6c99ce is a light color. The web-safe version is Hex
#6699CC. A complementary color is
#936631. The grayscale version is
#9C9C9C. A 20% lighter version of the original color is
#9FCCFF, and Hex
#39669B is the 20% darker color. If the color is saturated by 10%, you get
#6799D3. If the color is desaturated by 10%, the color
#7199C9 is obtained.