The hex color #3694e9 is a light color. The web-safe version is Hex
#3399FF. A complementary color is
#C96B16. The grayscale version is
#919191. A 20% lighter version of the original color is
#69C7FF, and Hex
#0361B6 is the 20% darker color. If the color is saturated by 10%, you get
#2D94F2. If the color is desaturated by 10%, the color
#3F94E0 is obtained.