The hex color #499fcc is a light color. The web-safe version is Hex
#3399CC. A complementary color is
#B66033. The grayscale version is
#919191. A 20% lighter version of the original color is
#7CD2FF, and Hex
#166C99 is the 20% darker color. If the color is saturated by 10%, you get
#42A0D2. If the color is desaturated by 10%, the color
#509EC6 is obtained.