The hex color #1f9de7 is a dark color. The web-safe version is Hex
#3399FF. A complementary color is
#E06218. The grayscale version is
#8C8C8C. A 20% lighter version of the original color is
#52D0FF, and Hex
#006AB4 is the 20% darker color. If the color is saturated by 10%, you get
#149FF0. If the color is desaturated by 10%, the color
#2A9BDE is obtained.