The hex color #3b6fd9 is a dark color. The web-safe version is Hex
#3366CC. A complementary color is
#C49026. The grayscale version is
#818181. A 20% lighter version of the original color is
#6EA2FF, and Hex
#083CA6 is the 20% darker color. If the color is saturated by 10%, you get
#346DE2. If the color is desaturated by 10%, the color
#4271D0 is obtained.